use container hostname alias for script

restore port option
fix transmission port forwarding
2026-02-26 00:17:47 -08:00 · 2026-02-26 00:16:39 -08:00 · 2026-02-26 00:08:40 -08:00 · 2026-02-25 23:37:26 -08:00 · 2026-02-25 23:24:23 -08:00 · 2026-02-25 23:23:49 -08:00
17 changed files with 1055 additions and 893 deletions
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -86,8 +86,16 @@ When adding or removing a web-facing service, update both:
 - Don't use `nix build --dry-run` unless you only need evaluation — it skips the actual build
 - Avoid `2>&1` on nix commands — it can cause error output to be missed

-## Git Worktree Requirement
+## Git Worktrees

-When instructed to work in a git worktree (e.g., via `isolation: "worktree"` or told to use a worktree), you **MUST** do so. If you are unable to create or use a git worktree, you **MUST** stop work immediately and report the failure to the user. Do not fall back to working in the main working tree.
+When the user asks you to "start a worktree" or work in a worktree, **do not create one manually** with `git worktree add`. Instead, tell the user to start a new session with:
+
+```bash
+claude --worktree <name>
+```
+
+This is the built-in Claude Code worktree workflow. It creates the worktree at `.claude/worktrees/<name>/` with a branch `worktree-<name>` and starts a new Claude session inside it. Cleanup is handled automatically on exit.
+
+When instructed to work in a git worktree (e.g., via `isolation: "worktree"` on a subagent), you **MUST** do so. If you are unable to create or use a git worktree, you **MUST** stop work immediately and report the failure to the user. Do not fall back to working in the main working tree.

 When applying work from a git worktree back to the main branch, commit in the worktree first, then use `git cherry-pick` from the main working tree to bring the commit over. Do not use `git checkout` or `git apply` to copy files directly. Do **not** automatically apply worktree work to the main branch — always ask the user for approval first.
--- a/common/default.nix
+++ b/common/default.nix
@@ -96,7 +96,7 @@
    { groups = [ "wheel" ]; persist = true; }
  ];

-  nix.gc.automatic = true;
+  nix.gc.automatic = !config.boot.isContainer;

  security.acme.acceptTerms = true;
  security.acme.defaults.email = "zuckerberg@neet.dev";
--- a/common/network/default.nix
+++ b/common/network/default.nix
@@ -7,10 +7,8 @@ let
 in
 {
  imports = [
-    ./pia-openvpn.nix
-    ./pia-wireguard.nix
+    ./pia-vpn
    ./tailscale.nix
-    ./vpn.nix
    ./sandbox.nix
  ];

--- a/common/network/pia-openvpn.nix
+++ b/common/network/pia-openvpn.nix
@@ -1,113 +0,0 @@
-{ config, pkgs, lib, ... }:
-
-let
-  cfg = config.pia.openvpn;
-  vpnfailsafe = pkgs.stdenv.mkDerivation {
-    pname = "vpnfailsafe";
-    version = "0.0.1";
-    src = ./.;
-    installPhase = ''
-      mkdir -p $out
-      cp vpnfailsafe.sh $out/vpnfailsafe.sh
-      sed -i 's|getent|${pkgs.getent}/bin/getent|' $out/vpnfailsafe.sh
-    '';
-  };
-in
-{
-  options.pia.openvpn = {
-    enable = lib.mkEnableOption "Enable private internet access";
-    server = lib.mkOption {
-      type = lib.types.str;
-      default = "us-washingtondc.privacy.network";
-      example = "swiss.privacy.network";
-    };
-  };
-
-  config = lib.mkIf cfg.enable {
-    services.openvpn = {
-      servers = {
-        pia = {
-          config = ''
-            client
-            dev tun
-            proto udp
-            remote ${cfg.server} 1198
-            resolv-retry infinite
-            nobind
-            persist-key
-            persist-tun
-            cipher aes-128-cbc
-            auth sha1
-            tls-client
-            remote-cert-tls server
-
-            auth-user-pass
-            compress
-            verb 1
-            reneg-sec 0
-            <crl-verify>
-            -----BEGIN X509 CRL-----
-            MIICWDCCAUAwDQYJKoZIhvcNAQENBQAwgegxCzAJBgNVBAYTAlVTMQswCQYDVQQI
-            EwJDQTETMBEGA1UEBxMKTG9zQW5nZWxlczEgMB4GA1UEChMXUHJpdmF0ZSBJbnRl
-            cm5ldCBBY2Nlc3MxIDAeBgNVBAsTF1ByaXZhdGUgSW50ZXJuZXQgQWNjZXNzMSAw
-            HgYDVQQDExdQcml2YXRlIEludGVybmV0IEFjY2VzczEgMB4GA1UEKRMXUHJpdmF0
-            ZSBJbnRlcm5ldCBBY2Nlc3MxLzAtBgkqhkiG9w0BCQEWIHNlY3VyZUBwcml2YXRl
-            aW50ZXJuZXRhY2Nlc3MuY29tFw0xNjA3MDgxOTAwNDZaFw0zNjA3MDMxOTAwNDZa
-            MCYwEQIBARcMMTYwNzA4MTkwMDQ2MBECAQYXDDE2MDcwODE5MDA0NjANBgkqhkiG
-            9w0BAQ0FAAOCAQEAQZo9X97ci8EcPYu/uK2HB152OZbeZCINmYyluLDOdcSvg6B5
-            jI+ffKN3laDvczsG6CxmY3jNyc79XVpEYUnq4rT3FfveW1+Ralf+Vf38HdpwB8EW
-            B4hZlQ205+21CALLvZvR8HcPxC9KEnev1mU46wkTiov0EKc+EdRxkj5yMgv0V2Re
-            ze7AP+NQ9ykvDScH4eYCsmufNpIjBLhpLE2cuZZXBLcPhuRzVoU3l7A9lvzG9mjA
-            5YijHJGHNjlWFqyrn1CfYS6koa4TGEPngBoAziWRbDGdhEgJABHrpoaFYaL61zqy
-            MR6jC0K2ps9qyZAN74LEBedEfK7tBOzWMwr58A==
-            -----END X509 CRL-----
-            </crl-verify>
-
-            <ca>
-            -----BEGIN CERTIFICATE-----
-            MIIFqzCCBJOgAwIBAgIJAKZ7D5Yv87qDMA0GCSqGSIb3DQEBDQUAMIHoMQswCQYD
-            VQQGEwJVUzELMAkGA1UECBMCQ0ExEzARBgNVBAcTCkxvc0FuZ2VsZXMxIDAeBgNV
-            BAoTF1ByaXZhdGUgSW50ZXJuZXQgQWNjZXNzMSAwHgYDVQQLExdQcml2YXRlIElu
-            dGVybmV0IEFjY2VzczEgMB4GA1UEAxMXUHJpdmF0ZSBJbnRlcm5ldCBBY2Nlc3Mx
-            IDAeBgNVBCkTF1ByaXZhdGUgSW50ZXJuZXQgQWNjZXNzMS8wLQYJKoZIhvcNAQkB
-            FiBzZWN1cmVAcHJpdmF0ZWludGVybmV0YWNjZXNzLmNvbTAeFw0xNDA0MTcxNzM1
-            MThaFw0zNDA0MTIxNzM1MThaMIHoMQswCQYDVQQGEwJVUzELMAkGA1UECBMCQ0Ex
-            EzARBgNVBAcTCkxvc0FuZ2VsZXMxIDAeBgNVBAoTF1ByaXZhdGUgSW50ZXJuZXQg
-            QWNjZXNzMSAwHgYDVQQLExdQcml2YXRlIEludGVybmV0IEFjY2VzczEgMB4GA1UE
-            AxMXUHJpdmF0ZSBJbnRlcm5ldCBBY2Nlc3MxIDAeBgNVBCkTF1ByaXZhdGUgSW50
-            ZXJuZXQgQWNjZXNzMS8wLQYJKoZIhvcNAQkBFiBzZWN1cmVAcHJpdmF0ZWludGVy
-            bmV0YWNjZXNzLmNvbTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAPXD
-            L1L9tX6DGf36liA7UBTy5I869z0UVo3lImfOs/GSiFKPtInlesP65577nd7UNzzX
-            lH/P/CnFPdBWlLp5ze3HRBCc/Avgr5CdMRkEsySL5GHBZsx6w2cayQ2EcRhVTwWp
-            cdldeNO+pPr9rIgPrtXqT4SWViTQRBeGM8CDxAyTopTsobjSiYZCF9Ta1gunl0G/
-            8Vfp+SXfYCC+ZzWvP+L1pFhPRqzQQ8k+wMZIovObK1s+nlwPaLyayzw9a8sUnvWB
-            /5rGPdIYnQWPgoNlLN9HpSmsAcw2z8DXI9pIxbr74cb3/HSfuYGOLkRqrOk6h4RC
-            OfuWoTrZup1uEOn+fw8CAwEAAaOCAVQwggFQMB0GA1UdDgQWBBQv63nQ/pJAt5tL
-            y8VJcbHe22ZOsjCCAR8GA1UdIwSCARYwggESgBQv63nQ/pJAt5tLy8VJcbHe22ZO
-            sqGB7qSB6zCB6DELMAkGA1UEBhMCVVMxCzAJBgNVBAgTAkNBMRMwEQYDVQQHEwpM
-            b3NBbmdlbGVzMSAwHgYDVQQKExdQcml2YXRlIEludGVybmV0IEFjY2VzczEgMB4G
-            A1UECxMXUHJpdmF0ZSBJbnRlcm5ldCBBY2Nlc3MxIDAeBgNVBAMTF1ByaXZhdGUg
-            SW50ZXJuZXQgQWNjZXNzMSAwHgYDVQQpExdQcml2YXRlIEludGVybmV0IEFjY2Vz
-            czEvMC0GCSqGSIb3DQEJARYgc2VjdXJlQHByaXZhdGVpbnRlcm5ldGFjY2Vzcy5j
-            b22CCQCmew+WL/O6gzAMBgNVHRMEBTADAQH/MA0GCSqGSIb3DQEBDQUAA4IBAQAn
-            a5PgrtxfwTumD4+3/SYvwoD66cB8IcK//h1mCzAduU8KgUXocLx7QgJWo9lnZ8xU
-            ryXvWab2usg4fqk7FPi00bED4f4qVQFVfGfPZIH9QQ7/48bPM9RyfzImZWUCenK3
-            7pdw4Bvgoys2rHLHbGen7f28knT2j/cbMxd78tQc20TIObGjo8+ISTRclSTRBtyC
-            GohseKYpTS9himFERpUgNtefvYHbn70mIOzfOJFTVqfrptf9jXa9N8Mpy3ayfodz
-            1wiqdteqFXkTYoSDctgKMiZ6GdocK9nMroQipIQtpnwd4yBDWIyC6Bvlkrq5TQUt
-            YDQ8z9v+DMO6iwyIDRiU
-            -----END CERTIFICATE-----
-            </ca>
-
-            disable-occ
-            auth-user-pass /run/agenix/pia-login.conf
-          '';
-          autoStart = true;
-          up = "${vpnfailsafe}/vpnfailsafe.sh";
-          down = "${vpnfailsafe}/vpnfailsafe.sh";
-        };
-      };
-    };
-    age.secrets."pia-login.conf".file = ../../secrets/pia-login.age;
-  };
-}
--- a/common/network/pia-vpn/README.md
+++ b/common/network/pia-vpn/README.md
@@ -0,0 +1,89 @@
+# PIA VPN Multi-Container Module
+
+Routes service containers through a PIA WireGuard VPN using a shared bridge network.
+
+## Architecture
+
+```
+                  internet
+                     │
+              ┌──────┴──────┐
+              │    Host      │
+              │  tinyproxy   │  ← PIA API bootstrap proxy
+              │  10.100.0.1  │
+              └──────┬───────┘
+                     │ br-vpn (no IPMasquerade)
+        ┌────────────┼──────────────┐
+        │            │              │
+ ┌──────┴──────┐ ┌───┴────┐  ┌─────┴──────┐
+ │ VPN ctr     │ │ servarr│  │transmission│
+ │ 10.100.0.2  │ │  .11   │  │   .10      │
+ │ piaw (WG)   │ │        │  │            │
+ │ gateway+NAT │ └────────┘  └────────────┘
+ └─────────────┘
+```
+
+- **Host** creates the WG interface (encrypted UDP stays in host netns) and runs tinyproxy on the bridge so the VPN container can bootstrap PIA auth before WG is up.
+- **VPN container** authenticates with PIA via the proxy, configures WG, sets up NAT (masquerade bridge→WG) and optional port forwarding DNAT.
+- **Service containers** default-route through the VPN container. No WG interface = no internet if VPN is down = leak-proof by topology.
+- **Host** reaches containers directly on the bridge for nginx reverse proxying.
+
+## Key design decisions
+
+- **Bridge, not veth pairs**: All containers share one bridge (`br-vpn`), so the VPN container can act as a single gateway. The host does NOT masquerade bridge traffic — only the VPN container does (through WG).
+- **Port forwarding is implicit**: If any container sets `receiveForwardedPort`, the VPN container automatically handles PIA port forwarding and DNAT. No separate toggle needed.
+- **DNS through WG**: Service containers use the VPN container as their DNS server. The VPN container runs `systemd-resolved` listening on its bridge IP, forwarding queries through the WG tunnel.
+- **Monthly renewal**: `pia-vpn-setup` uses `Type=simple` + `Restart=always` + `RuntimeMaxSec=30d` to periodically re-authenticate with PIA and get a fresh port forwarding signature (signatures expire after ~2 months). Service containers are unaffected during renewal.
+
+## Files
+
+| File | Purpose |
+|---|---|
+| `default.nix` | Options, bridge, tinyproxy, host firewall, WG interface creation, assertions |
+| `vpn-container.nix` | VPN container: PIA auth, WG config, NAT, DNAT, port refresh timer |
+| `service-container.nix` | Generates service containers with static IP and gateway→VPN |
+| `scripts.nix` | Bash function library for PIA API calls and WG configuration |
+| `ca.rsa.4096.crt` | PIA CA certificate for API TLS verification |
+
+## Usage
+
+```nix
+pia-vpn = {
+  enable = true;
+  serverLocation = "swiss";
+
+  containers.my-service = {
+    ip = "10.100.0.10";
+    mounts."/data".hostPath = "/data";
+    config = { services.my-app.enable = true; };
+
+    # Optional: receive PIA's forwarded port (at most one container)
+    receiveForwardedPort = { port = 8080; protocol = "both"; };
+    onPortForwarded = ''
+      echo "PIA assigned port $PORT, forwarding to $TARGET_IP:8080"
+    '';
+  };
+};
+```
+
+## Debugging
+
+```bash
+# Check VPN container status
+machinectl shell pia-vpn
+systemctl status pia-vpn-setup
+journalctl -u pia-vpn-setup
+
+# Verify WG tunnel
+wg show
+
+# Check NAT/DNAT rules
+iptables -t nat -L -v
+iptables -L FORWARD -v
+
+# From a service container — verify VPN routing
+curl ifconfig.me
+
+# Port refresh logs
+journalctl -u pia-vpn-port-refresh
+```
--- a/common/network/pia-vpn/ca.rsa.4096.crt
+++ b/common/network/pia-vpn/ca.rsa.4096.crt
--- a/common/network/pia-vpn/default.nix
+++ b/common/network/pia-vpn/default.nix
@@ -0,0 +1,279 @@
+{ config, lib, pkgs, ... }:
+
+# PIA VPN multi-container module.
+#
+# Architecture:
+#   Host creates WG interface, runs tinyproxy on bridge for PIA API bootstrap.
+#   VPN container does all PIA logic via proxy, configures WG, masquerades bridge→piaw.
+#   Service containers default route → VPN container (leak-proof by topology).
+#
+# Reference: https://www.wireguard.com/netns/#ordinary-containerization
+
+with lib;
+
+let
+  cfg = config.pia-vpn;
+
+  # Derive prefix length from subnet CIDR (e.g. "10.100.0.0/24" → "24")
+  subnetPrefixLen = last (splitString "/" cfg.subnet);
+
+  containerSubmodule = types.submodule ({ name, ... }: {
+    options = {
+      ip = mkOption {
+        type = types.str;
+        description = "Static IP address for this container on the VPN bridge";
+      };
+
+      config = mkOption {
+        type = types.anything;
+        default = { };
+        description = "NixOS configuration for this container";
+      };
+
+      mounts = mkOption {
+        type = types.attrsOf (types.submodule {
+          options = {
+            hostPath = mkOption {
+              type = types.str;
+              description = "Path on the host to bind mount";
+            };
+            isReadOnly = mkOption {
+              type = types.bool;
+              default = false;
+              description = "Whether the mount is read-only";
+            };
+          };
+        });
+        default = { };
+        description = "Bind mounts for the container";
+      };
+
+      receiveForwardedPort = mkOption {
+        type = types.nullOr (types.submodule {
+          options = {
+            port = mkOption {
+              type = types.nullOr types.port;
+              default = null;
+              description = ''
+                Target port to forward to. If null, forwards to the same PIA-assigned port.
+                PIA-assigned ports below 1000 are rejected to avoid accidentally
+                forwarding traffic to privileged services.
+              '';
+            };
+            protocol = mkOption {
+              type = types.enum [ "tcp" "udp" "both" ];
+              default = "both";
+              description = "Protocol(s) to forward";
+            };
+          };
+        });
+        default = null;
+        description = "Port forwarding configuration. At most one container may set this.";
+      };
+
+      onPortForwarded = mkOption {
+        type = types.nullOr types.lines;
+        default = null;
+        description = ''
+          Optional script run in the VPN container after port forwarding is established.
+          Available environment variables: $PORT (PIA-assigned port), $TARGET_IP (this container's IP).
+        '';
+      };
+    };
+  });
+
+  # NOTE: All derivations of cfg.containers are kept INSIDE config = mkIf ... { }
+  # to avoid infinite recursion. The module system's pushDownProperties eagerly
+  # evaluates let bindings and mkMerge contents, so any top-level let binding
+  # that touches cfg.containers would force config evaluation during structure
+  # discovery, creating a cycle.
+in
+{
+  imports = [
+    ./vpn-container.nix
+    ./service-container.nix
+  ];
+
+  options.pia-vpn = {
+    enable = mkEnableOption "PIA VPN multi-container setup";
+
+    serverLocation = mkOption {
+      type = types.str;
+      default = "swiss";
+      description = "PIA server region ID";
+    };
+
+    interfaceName = mkOption {
+      type = types.str;
+      default = "piaw";
+      description = "WireGuard interface name";
+    };
+
+    wireguardListenPort = mkOption {
+      type = types.port;
+      default = 51820;
+      description = "WireGuard listen port";
+    };
+
+    bridgeName = mkOption {
+      type = types.str;
+      default = "br-vpn";
+      description = "Bridge interface name for VPN containers";
+    };
+
+    subnet = mkOption {
+      type = types.str;
+      default = "10.100.0.0/24";
+      description = "Subnet CIDR for VPN bridge network";
+    };
+
+    hostAddress = mkOption {
+      type = types.str;
+      default = "10.100.0.1";
+      description = "Host IP on the VPN bridge";
+    };
+
+    vpnAddress = mkOption {
+      type = types.str;
+      default = "10.100.0.2";
+      description = "VPN container IP on the bridge";
+    };
+
+    proxyPort = mkOption {
+      type = types.port;
+      default = 8888;
+      description = "Tinyproxy port for PIA API bootstrap";
+    };
+
+    containers = mkOption {
+      type = types.attrsOf containerSubmodule;
+      default = { };
+      description = "Service containers that route through the VPN";
+    };
+
+    # Subnet prefix length derived from cfg.subnet (exposed for other submodules)
+    subnetPrefixLen = mkOption {
+      type = types.str;
+      default = subnetPrefixLen;
+      description = "Prefix length derived from subnet CIDR";
+      readOnly = true;
+    };
+
+    # Shared host entries for all containers (host + VPN + service containers)
+    containerHosts = mkOption {
+      type = types.attrsOf (types.listOf types.str);
+      internal = true;
+      readOnly = true;
+    };
+  };
+
+  config = mkIf cfg.enable {
+    assertions =
+      let
+        forwardingContainers = filterAttrs (_: c: c.receiveForwardedPort != null) cfg.containers;
+        containerIPs = mapAttrsToList (_: c: c.ip) cfg.containers;
+      in
+      [
+        {
+          assertion = length (attrNames forwardingContainers) <= 1;
+          message = "At most one pia-vpn container may set receiveForwardedPort";
+        }
+        {
+          assertion = length containerIPs == length (unique containerIPs);
+          message = "pia-vpn container IPs must be unique";
+        }
+      ];
+
+    # Enable systemd-networkd for bridge management
+    systemd.network.enable = true;
+
+    # TODO: re-enable once primary networking uses networkd
+    systemd.network.wait-online.enable = false;
+
+    # Tell NetworkManager to ignore VPN bridge and container interfaces
+    networking.networkmanager.unmanaged = mkIf config.networking.networkmanager.enable [
+      "interface-name:${cfg.bridgeName}"
+      "interface-name:ve-*"
+    ];
+
+    # Bridge network device
+    systemd.network.netdevs."20-${cfg.bridgeName}".netdevConfig = {
+      Kind = "bridge";
+      Name = cfg.bridgeName;
+    };
+
+    # Bridge network configuration — NO IPMasquerade (host must NOT be gateway)
+    systemd.network.networks."20-${cfg.bridgeName}" = {
+      matchConfig.Name = cfg.bridgeName;
+      networkConfig = {
+        Address = "${cfg.hostAddress}/${cfg.subnetPrefixLen}";
+        DHCPServer = false;
+      };
+      linkConfig.RequiredForOnline = "no";
+    };
+
+    # Allow wireguard traffic through rpfilter
+    networking.firewall.checkReversePath = "loose";
+
+    # Block bridge → outside forwarding (prevents host from being a gateway for containers)
+    networking.firewall.extraForwardRules = ''
+      iifname "${cfg.bridgeName}" oifname != "${cfg.bridgeName}" drop
+    '';
+
+    # Allow tinyproxy from bridge (tinyproxy itself restricts to VPN container IP)
+    networking.firewall.interfaces.${cfg.bridgeName}.allowedTCPPorts = [ cfg.proxyPort ];
+
+    # Tinyproxy — runs on bridge IP so VPN container can bootstrap PIA auth
+    services.tinyproxy = {
+      enable = true;
+      settings = {
+        Listen = cfg.hostAddress;
+        Port = cfg.proxyPort;
+      };
+    };
+    systemd.services.tinyproxy.before = [ "container@pia-vpn.service" ];
+
+    # WireGuard interface creation (host-side oneshot)
+    # Creates the interface in the host namespace so encrypted UDP stays in host netns.
+    # The container takes ownership of the interface on startup via `interfaces = [ ... ]`.
+    systemd.services.pia-vpn-wg-create = {
+      description = "Create PIA VPN WireGuard interface";
+
+      before = [ "container@pia-vpn.service" ];
+      requiredBy = [ "container@pia-vpn.service" ];
+      partOf = [ "container@pia-vpn.service" ];
+      wantedBy = [ "multi-user.target" ];
+
+      path = with pkgs; [ iproute2 ];
+
+      serviceConfig = {
+        Type = "oneshot";
+        RemainAfterExit = true;
+      };
+
+      script = ''
+        [[ -z $(ip link show dev ${cfg.interfaceName} 2>/dev/null) ]] || exit 0
+        ip link add ${cfg.interfaceName} type wireguard
+      '';
+
+      preStop = ''
+        ip link del ${cfg.interfaceName} 2>/dev/null || true
+      '';
+    };
+
+    # Host entries for container hostnames — NixOS only auto-creates these for
+    # hostAddress/localAddress containers, not hostBridge. Use the standard
+    # {name}.containers convention.
+    pia-vpn.containerHosts =
+      { ${cfg.vpnAddress} = [ "pia-vpn.containers" ]; }
+      // mapAttrs' (name: ctr: nameValuePair ctr.ip [ "${name}.containers" ]) cfg.containers;
+
+    networking.hosts = cfg.containerHosts;
+
+    # PIA login secret
+    age.secrets."pia-login.conf".file = ../../../secrets/pia-login.age;
+
+    # IP forwarding needed for bridge traffic between containers
+    networking.ip_forward = true;
+  };
+}
--- a/common/network/pia-vpn/scripts.nix
+++ b/common/network/pia-vpn/scripts.nix
@@ -0,0 +1,198 @@
+let
+  caPath = ./ca.rsa.4096.crt;
+in
+
+# Bash function library for PIA VPN WireGuard operations.
+  # All PIA API calls accept an optional $proxy variable:
+  #   proxy="http://10.100.0.1:8888" fetchPIAToken
+  # When $proxy is set, curl uses --proxy "$proxy"; otherwise direct connection.
+
+  # Reference materials:
+  #   https://serverlist.piaservers.net/vpninfo/servers/v6
+  #   https://github.com/pia-foss/manual-connections
+  #   https://github.com/thrnz/docker-wireguard-pia/blob/master/extra/wg-gen.sh
+  #   https://www.wireguard.com/netns/#ordinary-containerization
+
+{
+  scriptCommon = ''
+    proxy_args() {
+      if [[ -n "''${proxy:-}" ]]; then
+        echo "--proxy $proxy"
+      fi
+    }
+
+    fetchPIAToken() {
+      local PIA_USER PIA_PASS resp
+      echo "Reading PIA credentials..."
+      PIA_USER=$(sed '1q;d' /run/agenix/pia-login.conf)
+      PIA_PASS=$(sed '2q;d' /run/agenix/pia-login.conf)
+      echo "Requesting PIA authentication token..."
+      resp=$(curl -s $(proxy_args) -u "$PIA_USER:$PIA_PASS" \
+        "https://www.privateinternetaccess.com/gtoken/generateToken")
+      PIA_TOKEN=$(echo "$resp" | jq -r '.token')
+      if [[ -z "$PIA_TOKEN" || "$PIA_TOKEN" == "null" ]]; then
+        echo "ERROR: Failed to fetch PIA token: $resp" >&2
+        return 1
+      fi
+      echo "PIA token acquired"
+    }
+
+    choosePIAServer() {
+      local serverLocation=$1
+      local servers servers_json totalservers serverindex
+      servers=$(mktemp)
+      servers_json=$(mktemp)
+      echo "Fetching PIA server list..."
+      curl -s $(proxy_args) \
+        "https://serverlist.piaservers.net/vpninfo/servers/v6" > "$servers"
+      head -n 1 "$servers" | tr -d '\n' > "$servers_json"
+
+      totalservers=$(jq -r \
+        '.regions | .[] | select(.id=="'"$serverLocation"'") | .servers.wg | length' \
+        "$servers_json")
+      if ! [[ "$totalservers" =~ ^[0-9]+$ ]] || [ "$totalservers" -eq 0 ] 2>/dev/null; then
+        echo "ERROR: Location \"$serverLocation\" not found." >&2
+        rm -f "$servers_json" "$servers"
+        return 1
+      fi
+      echo "Found $totalservers WireGuard servers in region '$serverLocation'"
+      serverindex=$(( RANDOM % totalservers ))
+
+      WG_HOSTNAME=$(jq -r \
+        '.regions | .[] | select(.id=="'"$serverLocation"'") | .servers.wg | .['"$serverindex"'].cn' \
+        "$servers_json")
+      WG_SERVER_IP=$(jq -r \
+        '.regions | .[] | select(.id=="'"$serverLocation"'") | .servers.wg | .['"$serverindex"'].ip' \
+        "$servers_json")
+      WG_SERVER_PORT=$(jq -r '.groups.wg | .[0] | .ports | .[0]' "$servers_json")
+
+      rm -f "$servers_json" "$servers"
+      echo "Selected server $serverindex/$totalservers: $WG_HOSTNAME ($WG_SERVER_IP:$WG_SERVER_PORT)"
+    }
+
+    generateWireguardKey() {
+      PRIVATE_KEY=$(wg genkey)
+      PUBLIC_KEY=$(echo "$PRIVATE_KEY" | wg pubkey)
+      echo "Generated WireGuard keypair"
+    }
+
+    authorizeKeyWithPIAServer() {
+      local addKeyResponse
+      echo "Sending addKey request to $WG_HOSTNAME ($WG_SERVER_IP:$WG_SERVER_PORT)..."
+      addKeyResponse=$(curl -s -G $(proxy_args) \
+        --connect-to "$WG_HOSTNAME::$WG_SERVER_IP:" \
+        --cacert "${caPath}" \
+        --data-urlencode "pt=$PIA_TOKEN" \
+        --data-urlencode "pubkey=$PUBLIC_KEY" \
+        "https://$WG_HOSTNAME:$WG_SERVER_PORT/addKey")
+      local status
+      status=$(echo "$addKeyResponse" | jq -r '.status')
+      if [[ "$status" != "OK" ]]; then
+        echo "ERROR: addKey failed: $addKeyResponse" >&2
+        return 1
+      fi
+      MY_IP=$(echo "$addKeyResponse" | jq -r '.peer_ip')
+      WG_SERVER_PUBLIC_KEY=$(echo "$addKeyResponse" | jq -r '.server_key')
+      WG_SERVER_PORT=$(echo "$addKeyResponse" | jq -r '.server_port')
+      echo "Key authorized — assigned VPN IP: $MY_IP, server port: $WG_SERVER_PORT"
+    }
+
+    writeWireguardQuickFile() {
+      local wgFile=$1
+      local listenPort=$2
+      rm -f "$wgFile"
+      touch "$wgFile"
+      chmod 700 "$wgFile"
+      cat > "$wgFile" <<WGEOF
+    [Interface]
+    PrivateKey = $PRIVATE_KEY
+    ListenPort = $listenPort
+    [Peer]
+    PersistentKeepalive = 25
+    PublicKey = $WG_SERVER_PUBLIC_KEY
+    AllowedIPs = 0.0.0.0/0
+    Endpoint = $WG_SERVER_IP:$WG_SERVER_PORT
+    WGEOF
+      echo "Wrote WireGuard config to $wgFile (listen=$listenPort)"
+    }
+
+    writeChosenServerToFile() {
+      local serverFile=$1
+      jq -n \
+        --arg hostname "$WG_HOSTNAME" \
+        --arg ip "$WG_SERVER_IP" \
+        --arg port "$WG_SERVER_PORT" \
+        '{hostname: $hostname, ip: $ip, port: $port}' > "$serverFile"
+      chmod 700 "$serverFile"
+      echo "Wrote server info to $serverFile"
+    }
+
+    loadChosenServerFromFile() {
+      local serverFile=$1
+      WG_HOSTNAME=$(jq -r '.hostname' "$serverFile")
+      WG_SERVER_IP=$(jq -r '.ip' "$serverFile")
+      WG_SERVER_PORT=$(jq -r '.port' "$serverFile")
+      echo "Loaded server info from $serverFile: $WG_HOSTNAME ($WG_SERVER_IP:$WG_SERVER_PORT)"
+    }
+
+    connectToServer() {
+      local wgFile=$1
+      local interfaceName=$2
+
+      echo "Applying WireGuard config to $interfaceName..."
+      wg setconf "$interfaceName" "$wgFile"
+      ip -4 address add "$MY_IP" dev "$interfaceName"
+      ip link set mtu 1420 up dev "$interfaceName"
+      echo "WireGuard interface $interfaceName is up with IP $MY_IP"
+    }
+
+    reservePortForward() {
+      local payload_and_signature
+      echo "Requesting port forward signature from $WG_HOSTNAME..."
+      payload_and_signature=$(curl -s -m 5 \
+        --connect-to "$WG_HOSTNAME::$WG_SERVER_IP:" \
+        --cacert "${caPath}" \
+        -G --data-urlencode "token=$PIA_TOKEN" \
+        "https://$WG_HOSTNAME:19999/getSignature")
+      local status
+      status=$(echo "$payload_and_signature" | jq -r '.status')
+      if [[ "$status" != "OK" ]]; then
+        echo "ERROR: getSignature failed: $payload_and_signature" >&2
+        return 1
+      fi
+      PORT_SIGNATURE=$(echo "$payload_and_signature" | jq -r '.signature')
+      PORT_PAYLOAD=$(echo "$payload_and_signature" | jq -r '.payload')
+      PORT=$(echo "$PORT_PAYLOAD" | base64 -d | jq -r '.port')
+      echo "Port forward reserved: port $PORT"
+    }
+
+    writePortRenewalFile() {
+      local portRenewalFile=$1
+      jq -n \
+        --arg signature "$PORT_SIGNATURE" \
+        --arg payload "$PORT_PAYLOAD" \
+        '{signature: $signature, payload: $payload}' > "$portRenewalFile"
+      chmod 700 "$portRenewalFile"
+      echo "Wrote port renewal data to $portRenewalFile"
+    }
+
+    readPortRenewalFile() {
+      local portRenewalFile=$1
+      PORT_SIGNATURE=$(jq -r '.signature' "$portRenewalFile")
+      PORT_PAYLOAD=$(jq -r '.payload' "$portRenewalFile")
+      echo "Loaded port renewal data from $portRenewalFile"
+    }
+
+    refreshPIAPort() {
+      local bindPortResponse
+      echo "Refreshing port forward binding with $WG_HOSTNAME..."
+      bindPortResponse=$(curl -Gs -m 5 \
+        --connect-to "$WG_HOSTNAME::$WG_SERVER_IP:" \
+        --cacert "${caPath}" \
+        --data-urlencode "payload=$PORT_PAYLOAD" \
+        --data-urlencode "signature=$PORT_SIGNATURE" \
+        "https://$WG_HOSTNAME:19999/bindPort")
+      echo "bindPort response: $bindPortResponse"
+    }
+  '';
+}
--- a/common/network/pia-vpn/service-container.nix
+++ b/common/network/pia-vpn/service-container.nix
@@ -0,0 +1,87 @@
+{ config, lib, allModules, ... }:
+
+# Generates service containers that route all traffic through the VPN container.
+# Each container gets a static IP on the VPN bridge with default route → VPN container.
+#
+# Uses lazy mapAttrs inside fixed config keys to avoid infinite recursion.
+# (mkMerge + mapAttrsToList at the top level forces eager evaluation of cfg.containers
+# during module structure discovery, which creates a cycle with config evaluation.)
+
+with lib;
+
+let
+  cfg = config.pia-vpn;
+
+  mkContainer = name: ctr: {
+    autoStart = true;
+    ephemeral = true;
+    privateNetwork = true;
+    hostBridge = cfg.bridgeName;
+
+    bindMounts = mapAttrs
+      (_: mount: {
+        hostPath = mount.hostPath;
+        isReadOnly = mount.isReadOnly;
+      })
+      ctr.mounts;
+
+    config = { config, pkgs, lib, ... }: {
+      imports = allModules ++ [ ctr.config ];
+
+      # Static IP with gateway pointing to VPN container
+      networking.useNetworkd = true;
+      systemd.network.enable = true;
+      networking.useDHCP = false;
+
+      systemd.network.networks."20-eth0" = {
+        matchConfig.Name = "eth0";
+        networkConfig = {
+          Address = "${ctr.ip}/${cfg.subnetPrefixLen}";
+          Gateway = cfg.vpnAddress;
+          DNS = [ cfg.vpnAddress ];
+        };
+      };
+
+      networking.hosts = cfg.containerHosts;
+
+      # DNS through VPN container (queries go through WG tunnel = no DNS leak)
+      networking.nameservers = [ cfg.vpnAddress ];
+
+      # Wait for actual VPN connectivity before network-online.target.
+      # Without this, services start before the VPN tunnel is ready and failures
+      # can't be reported to ntfy (no outbound connectivity yet).
+      systemd.services.wait-for-vpn = {
+        description = "Wait for VPN connectivity";
+        before = [ "network-online.target" ];
+        wantedBy = [ "network-online.target" ];
+        after = [ "systemd-networkd-wait-online.service" ];
+        serviceConfig.Type = "oneshot";
+        path = [ pkgs.iputils ];
+        script = ''
+          until ping -c1 -W2 1.1.1.1 >/dev/null 2>&1; do
+            echo "Waiting for VPN connectivity..."
+            sleep 1
+          done
+        '';
+      };
+
+      # Trust the bridge interface (host reaches us directly for nginx)
+      networking.firewall.trustedInterfaces = [ "eth0" ];
+
+      # Disable host resolv.conf — we use our own networkd DNS config
+      networking.useHostResolvConf = false;
+    };
+  };
+
+  mkContainerOrdering = name: _ctr: nameValuePair "container@${name}" {
+    after = [ "container@pia-vpn.service" ];
+    requires = [ "container@pia-vpn.service" ];
+    partOf = [ "container@pia-vpn.service" ];
+  };
+in
+{
+  config = mkIf cfg.enable {
+    containers = mapAttrs mkContainer cfg.containers;
+    systemd.services = mapAttrs' mkContainerOrdering cfg.containers;
+  };
+}
--- a/common/network/pia-vpn/vpn-container.nix
+++ b/common/network/pia-vpn/vpn-container.nix
@@ -0,0 +1,246 @@
+{ config, lib, allModules, ... }:
+
+# VPN container: runs all PIA logic, acts as WireGuard gateway + NAT for service containers.
+
+with lib;
+
+let
+  cfg = config.pia-vpn;
+  scripts = import ./scripts.nix;
+
+  # Port forwarding derived state
+  forwardingContainers = filterAttrs (_: c: c.receiveForwardedPort != null) cfg.containers;
+  portForwarding = forwardingContainers != { };
+  forwardingContainerName = if portForwarding then head (attrNames forwardingContainers) else null;
+  forwardingContainer = if portForwarding then forwardingContainers.${forwardingContainerName} else null;
+
+  serverFile = "/var/lib/pia-vpn/server.json";
+  wgFile = "/var/lib/pia-vpn/wg.conf";
+  portRenewalFile = "/var/lib/pia-vpn/port-renewal.json";
+  proxy = "http://${cfg.hostAddress}:${toString cfg.proxyPort}";
+
+  # DNAT/forwarding rules for port forwarding
+  dnatSetupScript = optionalString portForwarding (
+    let
+      fwd = forwardingContainer.receiveForwardedPort;
+      targetIp = forwardingContainer.ip;
+      dnatTarget = if fwd.port != null then "${targetIp}:${toString fwd.port}" else targetIp;
+      targetPort = if fwd.port != null then toString fwd.port else "$PORT";
+      tcpRules = optionalString (fwd.protocol == "tcp" || fwd.protocol == "both") ''
+        echo "Setting up TCP DNAT: port $PORT → ${targetIp}:${targetPort}"
+        iptables -t nat -A PREROUTING -i ${cfg.interfaceName} -p tcp --dport $PORT -j DNAT --to ${dnatTarget}
+        iptables -A FORWARD -i ${cfg.interfaceName} -d ${targetIp} -p tcp --dport ${targetPort} -j ACCEPT
+      '';
+      udpRules = optionalString (fwd.protocol == "udp" || fwd.protocol == "both") ''
+        echo "Setting up UDP DNAT: port $PORT → ${targetIp}:${targetPort}"
+        iptables -t nat -A PREROUTING -i ${cfg.interfaceName} -p udp --dport $PORT -j DNAT --to ${dnatTarget}
+        iptables -A FORWARD -i ${cfg.interfaceName} -d ${targetIp} -p udp --dport ${targetPort} -j ACCEPT
+      '';
+      onPortForwarded = optionalString (forwardingContainer.onPortForwarded != null) ''
+        TARGET_IP="${targetIp}"
+        export PORT TARGET_IP
+        echo "Running onPortForwarded hook for ${forwardingContainerName} (port=$PORT, target=$TARGET_IP)"
+        ${forwardingContainer.onPortForwarded}
+      '';
+    in
+    ''
+      if [ "$PORT" -lt 1000 ]; then
+        echo "ERROR: PIA assigned privileged port $PORT (< 1000), refusing to set up DNAT" >&2
+      else
+        ${tcpRules}
+        ${udpRules}
+        ${onPortForwarded}
+      fi
+    ''
+  );
+in
+{
+  config = mkIf cfg.enable {
+    # Give the container more time to boot (pia-vpn-setup retries can delay readiness)
+    systemd.services."container@pia-vpn".serviceConfig.TimeoutStartSec = mkForce "180s";
+
+    containers.pia-vpn = {
+      autoStart = true;
+      ephemeral = true;
+      privateNetwork = true;
+      hostBridge = cfg.bridgeName;
+      interfaces = [ cfg.interfaceName ];
+
+      bindMounts."/run/agenix" = {
+        hostPath = "/run/agenix";
+        isReadOnly = true;
+      };
+
+      config = { config, pkgs, lib, ... }:
+        let
+          scriptPkgs = with pkgs; [ wireguard-tools iproute2 curl jq iptables coreutils ];
+        in
+        {
+          imports = allModules;
+
+          networking.hosts = cfg.containerHosts;
+
+          # Static IP on bridge — no gateway (VPN container routes via WG only)
+          networking.useNetworkd = true;
+          systemd.network.enable = true;
+          networking.useDHCP = false;
+
+          systemd.network.networks."20-eth0" = {
+            matchConfig.Name = "eth0";
+            networkConfig = {
+              Address = "${cfg.vpnAddress}/${cfg.subnetPrefixLen}";
+              DHCPServer = false;
+            };
+          };
+
+          # Ignore WG interface for wait-online (it's configured manually, not by networkd)
+          systemd.network.wait-online.ignoredInterfaces = [ cfg.interfaceName ];
+
+          # Route ntfy alerts through the host proxy (VPN container has no gateway on eth0)
+          ntfy-alerts.curlExtraArgs = "--proxy http://${cfg.hostAddress}:${toString cfg.proxyPort}";
+
+          # Enable forwarding so bridge traffic can go through WG
+          boot.kernel.sysctl."net.ipv4.ip_forward" = 1;
+
+          # Trust bridge interface
+          networking.firewall.trustedInterfaces = [ "eth0" ];
+
+          # DNS: use systemd-resolved listening on bridge IP so service containers
+          # can use VPN container as DNS server (queries go through WG tunnel = no DNS leak)
+          services.resolved = {
+            enable = true;
+            settings.Resolve.DNSStubListenerExtra = cfg.vpnAddress;
+          };
+
+          # Don't use host resolv.conf — resolved manages DNS
+          networking.useHostResolvConf = false;
+
+          # State directory for PIA config files
+          systemd.tmpfiles.rules = [
+            "d /var/lib/pia-vpn 0700 root root -"
+          ];
+
+          # PIA VPN setup service — does all the PIA auth, WG config, and NAT setup
+          systemd.services.pia-vpn-setup = {
+            description = "PIA VPN WireGuard Setup";
+
+            wants = [ "network-online.target" ];
+            after = [ "network.target" "network-online.target" "systemd-networkd.service" ];
+            wantedBy = [ "multi-user.target" ];
+
+            path = scriptPkgs;
+
+            serviceConfig = {
+              Type = "simple";
+              Restart = "always";
+              RestartSec = "10s";
+              RuntimeMaxSec = "30d";
+            };
+
+            script = ''
+              set -euo pipefail
+              ${scripts.scriptCommon}
+
+              # Clean up stale state from previous attempts
+              wg set ${cfg.interfaceName} listen-port 0 2>/dev/null || true
+              ip -4 address flush dev ${cfg.interfaceName} 2>/dev/null || true
+              ip route del default dev ${cfg.interfaceName} 2>/dev/null || true
+              iptables -t nat -F 2>/dev/null || true
+              iptables -F FORWARD 2>/dev/null || true
+
+              proxy="${proxy}"
+
+              # 1. Authenticate with PIA via proxy (VPN container has no internet yet)
+              echo "Choosing PIA server in region '${cfg.serverLocation}'..."
+              choosePIAServer '${cfg.serverLocation}'
+
+              echo "Fetching PIA authentication token..."
+              fetchPIAToken
+
+              # 2. Generate WG keys and authorize with PIA server
+              echo "Generating WireGuard keypair..."
+              generateWireguardKey
+
+              echo "Authorizing key with PIA server $WG_HOSTNAME..."
+              authorizeKeyWithPIAServer
+
+              # 3. Configure WG interface (already created by host and moved into our namespace)
+              echo "Configuring WireGuard interface ${cfg.interfaceName}..."
+              writeWireguardQuickFile '${wgFile}' ${toString cfg.wireguardListenPort}
+              writeChosenServerToFile '${serverFile}'
+              connectToServer '${wgFile}' '${cfg.interfaceName}'
+
+              # 4. Default route through WG
+              ip route replace default dev ${cfg.interfaceName}
+              echo "Default route set through ${cfg.interfaceName}"
+
+              # 5. NAT: masquerade bridge → WG (so service containers' traffic appears to come from VPN IP)
+              echo "Setting up NAT masquerade..."
+              iptables -t nat -A POSTROUTING -o ${cfg.interfaceName} -j MASQUERADE
+              iptables -A FORWARD -i eth0 -o ${cfg.interfaceName} -j ACCEPT
+              iptables -A FORWARD -i ${cfg.interfaceName} -o eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT
+
+              ${optionalString portForwarding ''
+                # 6. Port forwarding setup
+                echo "Reserving port forward..."
+                reservePortForward
+                writePortRenewalFile '${portRenewalFile}'
+
+                # First bindPort triggers actual port allocation
+                echo "Binding port $PORT..."
+                refreshPIAPort
+
+                echo "PIA assigned port: $PORT"
+
+                # DNAT rules to forward PIA port to target container
+                ${dnatSetupScript}
+              ''}
+
+              echo "PIA VPN setup complete"
+              exec sleep infinity
+            '';
+
+            preStop = ''
+              echo "Tearing down PIA VPN..."
+              ip -4 address flush dev ${cfg.interfaceName} 2>/dev/null || true
+              ip route del default dev ${cfg.interfaceName} 2>/dev/null || true
+              iptables -t nat -F POSTROUTING 2>/dev/null || true
+              iptables -F FORWARD 2>/dev/null || true
+              ${optionalString portForwarding ''
+                iptables -t nat -F PREROUTING 2>/dev/null || true
+              ''}
+            '';
+          };
+
+          # Port refresh timer (every 10 min) — keeps PIA port forwarding alive
+          systemd.services.pia-vpn-port-refresh = mkIf portForwarding {
+            description = "PIA VPN Port Forward Refresh";
+            after = [ "pia-vpn-setup.service" ];
+            requires = [ "pia-vpn-setup.service" ];
+
+            path = scriptPkgs;
+
+            serviceConfig.Type = "oneshot";
+
+            script = ''
+              set -euo pipefail
+              ${scripts.scriptCommon}
+              loadChosenServerFromFile '${serverFile}'
+              readPortRenewalFile '${portRenewalFile}'
+              echo "Refreshing PIA port forward..."
+              refreshPIAPort
+            '';
+          };
+
+          systemd.timers.pia-vpn-port-refresh = mkIf portForwarding {
+            partOf = [ "pia-vpn-port-refresh.service" ];
+            wantedBy = [ "timers.target" ];
+            timerConfig = {
+              OnCalendar = "*:0/10";
+              RandomizedDelaySec = "1m";
+            };
+          };
+        };
+    };
+  };
+}
--- a/common/network/pia-wireguard.nix
+++ b/common/network/pia-wireguard.nix
@@ -1,363 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-# Server list:
-#   https://serverlist.piaservers.net/vpninfo/servers/v6
-# Reference materials:
-#   https://github.com/pia-foss/manual-connections
-#   https://github.com/thrnz/docker-wireguard-pia/blob/master/extra/wg-gen.sh
-
-# TODO handle potential errors (or at least print status, success, and failures to the console)
-# TODO parameterize names of systemd services so that multiple wg VPNs could coexist in theory easier
-# TODO implement this module such that the wireguard VPN doesn't have to live in a container
-# TODO don't add forward rules if the PIA port is the same as cfg.forwardedPort
-# TODO verify signatures of PIA responses
-# TODO `RuntimeMaxSec = "30d";` for pia-vpn-wireguard-init isn't allowed per the systemd logs. Find alternative.
-
-with builtins;
-with lib;
-
-let
-  cfg = config.pia.wireguard;
-
-  getPIAToken = ''
-    PIA_USER=`sed '1q;d' /run/agenix/pia-login.conf`
-    PIA_PASS=`sed '2q;d' /run/agenix/pia-login.conf`
-    # PIA_TOKEN only lasts 24hrs
-    PIA_TOKEN=`curl -s -u "$PIA_USER:$PIA_PASS" https://www.privateinternetaccess.com/gtoken/generateToken | jq -r '.token'`
-  '';
-
-  chooseWireguardServer = ''
-    servers=$(mktemp)
-    servers_json=$(mktemp)
-    curl -s "https://serverlist.piaservers.net/vpninfo/servers/v6" > "$servers"
-    # extract json part only
-    head -n 1 "$servers" | tr -d '\n' > "$servers_json"
-
-    echo "Available location ids:" && jq '.regions | .[] | {name, id, port_forward}' "$servers_json"
-
-    # Some locations have multiple servers available. Pick a random one.
-    totalservers=$(jq -r '.regions | .[] | select(.id=="'${cfg.serverLocation}'") | .servers.wg | length' "$servers_json")
-    if ! [[ "$totalservers" =~ ^[0-9]+$ ]] || [ "$totalservers" -eq 0 ] 2>/dev/null; then
-      echo "Location \"${cfg.serverLocation}\" not found."
-      exit 1
-    fi
-    serverindex=$(( RANDOM % totalservers))
-    WG_HOSTNAME=$(jq -r '.regions | .[] | select(.id=="'${cfg.serverLocation}'") | .servers.wg | .['$serverindex'].cn' "$servers_json")
-    WG_SERVER_IP=$(jq -r '.regions | .[] | select(.id=="'${cfg.serverLocation}'") | .servers.wg | .['$serverindex'].ip' "$servers_json")
-    WG_SERVER_PORT=$(jq -r '.groups.wg | .[0] | .ports | .[0]' "$servers_json")
-
-    # write chosen server
-    rm -f /tmp/${cfg.interfaceName}-server.conf
-    touch /tmp/${cfg.interfaceName}-server.conf
-    chmod 700 /tmp/${cfg.interfaceName}-server.conf
-    echo "$WG_HOSTNAME" >> /tmp/${cfg.interfaceName}-server.conf
-    echo "$WG_SERVER_IP" >> /tmp/${cfg.interfaceName}-server.conf
-    echo "$WG_SERVER_PORT" >> /tmp/${cfg.interfaceName}-server.conf
-
-    rm $servers_json $servers
-  '';
-
-  getChosenWireguardServer = ''
-    WG_HOSTNAME=`sed '1q;d' /tmp/${cfg.interfaceName}-server.conf`
-    WG_SERVER_IP=`sed '2q;d' /tmp/${cfg.interfaceName}-server.conf`
-    WG_SERVER_PORT=`sed '3q;d' /tmp/${cfg.interfaceName}-server.conf`
-  '';
-
-  refreshPIAPort = ''
-    ${getChosenWireguardServer}
-    signature=`sed '1q;d' /tmp/${cfg.interfaceName}-port-renewal`
-    payload=`sed '2q;d' /tmp/${cfg.interfaceName}-port-renewal`
-    bind_port_response=`curl -Gs -m 5 --connect-to "$WG_HOSTNAME::$WG_SERVER_IP:" --cacert "${./ca.rsa.4096.crt}" --data-urlencode "payload=$payload" --data-urlencode "signature=$signature" "https://$WG_HOSTNAME:19999/bindPort"`
-  '';
-
-  portForwarding = cfg.forwardPortForTransmission || cfg.forwardedPort != null;
-
-  containerServiceName = "container@${config.vpn-container.containerName}.service";
-in
-{
-  options.pia.wireguard = {
-    enable = mkEnableOption "Enable private internet access";
-    badPortForwardPorts = mkOption {
-      type = types.listOf types.port;
-      description = ''
-        Ports that will not be accepted from PIA.
-        If PIA assigns a port from this list, the connection is aborted since we cannot ask for a different port.
-        This is used to guarantee we are not assigned a port that is used by a service we do not want exposed.
-      '';
-    };
-    wireguardListenPort = mkOption {
-      type = types.port;
-      description = "The port wireguard listens on for this VPN connection";
-      default = 51820;
-    };
-    serverLocation = mkOption {
-      type = types.str;
-      default = "swiss";
-    };
-    interfaceName = mkOption {
-      type = types.str;
-      default = "piaw";
-    };
-    forwardedPort = mkOption {
-      type = types.nullOr types.port;
-      description = "The port to redirect port forwarded TCP VPN traffic too";
-      default = null;
-    };
-    forwardPortForTransmission = mkEnableOption "PIA port forwarding for transmission should be performed.";
-  };
-
-  config = mkIf cfg.enable {
-    assertions = [
-      {
-        assertion = cfg.forwardPortForTransmission != (cfg.forwardedPort != null);
-        message = ''
-          The PIA forwarded port cannot simultaneously be used by transmission and redirected to another port.
-        '';
-      }
-    ];
-
-    # mounts used to pass the connection parameters to the container
-    # the container doesn't have internet until it uses these parameters so it cannot fetch them itself
-    vpn-container.mounts = [
-      "/tmp/${cfg.interfaceName}.conf"
-      "/tmp/${cfg.interfaceName}-server.conf"
-      "/tmp/${cfg.interfaceName}-address.conf"
-    ];
-
-    # The container takes ownership of the wireguard interface on its startup
-    containers.vpn.interfaces = [ cfg.interfaceName ];
-
-    # TODO: while this is much better than "loose" networking, it seems to have issues with firewall restarts
-    # allow traffic for wireguard interface to pass since wireguard trips up rpfilter
-    # networking.firewall = {
-    #   extraCommands = ''
-    #     ip46tables -t raw -I nixos-fw-rpfilter -p udp -m udp --sport ${toString cfg.wireguardListenPort} -j RETURN
-    #     ip46tables -t raw -I nixos-fw-rpfilter -p udp -m udp --dport ${toString cfg.wireguardListenPort} -j RETURN
-    #   '';
-    #   extraStopCommands = ''
-    #     ip46tables -t raw -D nixos-fw-rpfilter -p udp -m udp --sport ${toString cfg.wireguardListenPort} -j RETURN || true
-    #     ip46tables -t raw -D nixos-fw-rpfilter -p udp -m udp --dport ${toString cfg.wireguardListenPort} -j RETURN || true
-    #   '';
-    # };
-    networking.firewall.checkReversePath = "loose";
-
-    systemd.services.pia-vpn-wireguard-init = {
-      description = "Creates PIA VPN Wireguard Interface";
-
-      wants = [ "network-online.target" ];
-      after = [ "network.target" "network-online.target" ];
-      before = [ containerServiceName ];
-      requiredBy = [ containerServiceName ];
-      partOf = [ containerServiceName ];
-      wantedBy = [ "multi-user.target" ];
-
-      path = with pkgs; [ wireguard-tools jq curl iproute2 iputils ];
-
-      serviceConfig = {
-        Type = "oneshot";
-        RemainAfterExit = true;
-
-        # restart once a month; PIA forwarded port expires after two months
-        # because the container is "PartOf" this unit, it gets restarted too
-        RuntimeMaxSec = "30d";
-      };
-
-      script = ''
-        echo Waiting for internet...
-        while ! ping -c 1 -W 1 1.1.1.1; do
-            sleep 1
-        done
-
-        # Prepare to connect by generating wg secrets and auth'ing with PIA since the container
-        # cannot do without internet to start with. NAT'ing the host's internet would address this
-        # issue but is not ideal because then leaking network outside of the VPN is more likely.
-
-        ${chooseWireguardServer}
-
-        ${getPIAToken}
-
-        # generate wireguard keys
-        privKey=$(wg genkey)
-        pubKey=$(echo "$privKey" | wg pubkey)
-
-        # authorize our WG keys with the PIA server we are about to connect to
-        wireguard_json=`curl -s -G --connect-to "$WG_HOSTNAME::$WG_SERVER_IP:" --cacert "${./ca.rsa.4096.crt}" --data-urlencode "pt=$PIA_TOKEN" --data-urlencode "pubkey=$pubKey" https://$WG_HOSTNAME:$WG_SERVER_PORT/addKey`
-
-        # create wg-quick config file
-        rm -f /tmp/${cfg.interfaceName}.conf /tmp/${cfg.interfaceName}-address.conf
-        touch /tmp/${cfg.interfaceName}.conf /tmp/${cfg.interfaceName}-address.conf
-        chmod 700 /tmp/${cfg.interfaceName}.conf /tmp/${cfg.interfaceName}-address.conf
-        echo "
-        [Interface]
-        # Address = $(echo "$wireguard_json" | jq -r '.peer_ip')
-        PrivateKey = $privKey
-        ListenPort = ${toString cfg.wireguardListenPort}
-        [Peer]
-        PersistentKeepalive = 25
-        PublicKey = $(echo "$wireguard_json" | jq -r '.server_key')
-        AllowedIPs = 0.0.0.0/0
-        Endpoint = $WG_SERVER_IP:$(echo "$wireguard_json" | jq -r '.server_port')
-        " >> /tmp/${cfg.interfaceName}.conf
-
-        # create file storing the VPN ip address PIA assigned to us
-        echo "$wireguard_json" | jq -r '.peer_ip' >> /tmp/${cfg.interfaceName}-address.conf
-
-        # Create wg interface now so it inherits from the namespace with internet access
-        # the container will handle actually connecting the interface since that info is
-        # not preserved upon moving into the container's networking namespace
-        # Roughly following this guide https://www.wireguard.com/netns/#ordinary-containerization
-        [[ -z $(ip link show dev ${cfg.interfaceName} 2>/dev/null) ]] || exit
-        ip link add ${cfg.interfaceName} type wireguard
-      '';
-
-      preStop = ''
-        # cleanup wireguard interface
-        ip link del ${cfg.interfaceName}
-        rm -f /tmp/${cfg.interfaceName}.conf /tmp/${cfg.interfaceName}-address.conf
-      '';
-    };
-
-    vpn-container.config.systemd.services.pia-vpn-wireguard = {
-      description = "Initializes the PIA VPN WireGuard Tunnel";
-
-      wants = [ "network-online.target" ];
-      after = [ "network.target" "network-online.target" ];
-      wantedBy = [ "multi-user.target" ];
-
-      path = with pkgs; [ wireguard-tools iproute2 curl jq iptables ];
-
-      serviceConfig = {
-        Type = "oneshot";
-        RemainAfterExit = true;
-      };
-
-      script = ''
-        # pseudo calls wg-quick
-        # Near equivalent of "wg-quick up /tmp/${cfg.interfaceName}.conf"
-        # cannot actually call wg-quick because the interface has to be already
-        # created before the container taken ownership of the interface
-        # Thus, assumes wg interface was already created:
-        #   ip link add ${cfg.interfaceName} type wireguard
-
-        ${getChosenWireguardServer}
-
-        myaddress=`cat /tmp/${cfg.interfaceName}-address.conf`
-
-        wg setconf ${cfg.interfaceName} /tmp/${cfg.interfaceName}.conf
-        ip -4 address add $myaddress dev ${cfg.interfaceName}
-        ip link set mtu 1420 up dev ${cfg.interfaceName}
-        wg set ${cfg.interfaceName} fwmark ${toString cfg.wireguardListenPort}
-        ip -4 route add 0.0.0.0/0 dev ${cfg.interfaceName} table ${toString cfg.wireguardListenPort}
-
-        # TODO is this needed?
-        ip -4 rule add not fwmark ${toString cfg.wireguardListenPort} table ${toString cfg.wireguardListenPort}
-        ip -4 rule add table main suppress_prefixlength 0
-
-        # The rest of the script is only for only for port forwarding skip if not needed
-        if [ ${boolToString portForwarding} == false ]; then exit 0; fi
-
-        # Reserve port
-        ${getPIAToken}
-        payload_and_signature=`curl -s -m 5 --connect-to "$WG_HOSTNAME::$WG_SERVER_IP:" --cacert "${./ca.rsa.4096.crt}" -G --data-urlencode "token=$PIA_TOKEN" "https://$WG_HOSTNAME:19999/getSignature"`
-        signature=$(echo "$payload_and_signature" | jq -r '.signature')
-        payload=$(echo "$payload_and_signature" | jq -r '.payload')
-        port=$(echo "$payload" | base64 -d | jq -r '.port')
-
-        # Check if the port is acceptable
-        notallowed=(${concatStringsSep " " (map toString cfg.badPortForwardPorts)})
-        if [[ " ''${notallowed[*]} " =~ " $port " ]]; then
-          # the port PIA assigned is not allowed, kill the connection
-          wg-quick down /tmp/${cfg.interfaceName}.conf
-          exit 1
-        fi
-
-        # write reserved port to file readable for all users
-        echo $port > /tmp/${cfg.interfaceName}-port
-        chmod 644 /tmp/${cfg.interfaceName}-port
-
-        # write payload and signature info needed to allow refreshing allocated forwarded port
-        rm -f /tmp/${cfg.interfaceName}-port-renewal
-        touch /tmp/${cfg.interfaceName}-port-renewal
-        chmod 700 /tmp/${cfg.interfaceName}-port-renewal
-        echo $signature >> /tmp/${cfg.interfaceName}-port-renewal
-        echo $payload >> /tmp/${cfg.interfaceName}-port-renewal
-
-        # Block all traffic from VPN interface except for traffic that is from the forwarded port
-        iptables -I nixos-fw -p tcp --dport $port -j nixos-fw-accept -i ${cfg.interfaceName}
-        iptables -I nixos-fw -p udp --dport $port -j nixos-fw-accept -i ${cfg.interfaceName}
-
-        # The first port refresh triggers the port to be actually allocated
-        ${refreshPIAPort}
-
-        ${optionalString (cfg.forwardedPort != null) ''
-          # redirect the fowarded port
-          iptables -A INPUT -i ${cfg.interfaceName} -p tcp --dport $port -j ACCEPT
-          iptables -A INPUT -i ${cfg.interfaceName} -p udp --dport $port -j ACCEPT
-          iptables -A INPUT -i ${cfg.interfaceName} -p tcp --dport ${toString cfg.forwardedPort} -j ACCEPT
-          iptables -A INPUT -i ${cfg.interfaceName} -p udp --dport ${toString cfg.forwardedPort} -j ACCEPT
-          iptables -A PREROUTING -t nat -i ${cfg.interfaceName} -p tcp --dport $port -j REDIRECT --to-port ${toString cfg.forwardedPort}
-          iptables -A PREROUTING -t nat -i ${cfg.interfaceName} -p udp --dport $port -j REDIRECT --to-port ${toString cfg.forwardedPort}
-        ''}
-
-        ${optionalString cfg.forwardPortForTransmission ''
-          # assumes no auth needed for transmission
-          curlout=$(curl localhost:9091/transmission/rpc 2>/dev/null)
-          regex='X-Transmission-Session-Id\: (\w*)'
-          if [[ $curlout =~ $regex ]]; then
-              sessionId=''${BASH_REMATCH[1]}
-          else
-              exit 1
-          fi
-
-          # set the port in transmission
-          data='{"method": "session-set", "arguments": { "peer-port" :'$port' } }'
-          curl http://localhost:9091/transmission/rpc -d "$data" -H "X-Transmission-Session-Id: $sessionId"
-        ''}
-      '';
-
-      preStop = ''
-        wg-quick down /tmp/${cfg.interfaceName}.conf
-
-        # The rest of the script is only for only for port forwarding skip if not needed
-        if [ ${boolToString portForwarding} == false ]; then exit 0; fi
-
-        ${optionalString (cfg.forwardedPort != null) ''
-          # stop redirecting the forwarded port
-          iptables -D INPUT -i ${cfg.interfaceName} -p tcp --dport $port -j ACCEPT
-          iptables -D INPUT -i ${cfg.interfaceName} -p udp --dport $port -j ACCEPT
-          iptables -D INPUT -i ${cfg.interfaceName} -p tcp --dport ${toString cfg.forwardedPort} -j ACCEPT
-          iptables -D INPUT -i ${cfg.interfaceName} -p udp --dport ${toString cfg.forwardedPort} -j ACCEPT
-          iptables -D PREROUTING -t nat -i ${cfg.interfaceName} -p tcp --dport $port -j REDIRECT --to-port ${toString cfg.forwardedPort}
-          iptables -D PREROUTING -t nat -i ${cfg.interfaceName} -p udp --dport $port -j REDIRECT --to-port ${toString cfg.forwardedPort}
-        ''}
-      '';
-    };
-
-    vpn-container.config.systemd.services.pia-vpn-wireguard-forward-port = {
-      enable = portForwarding;
-      description = "PIA VPN WireGuard Tunnel Port Forwarding";
-      after = [ "pia-vpn-wireguard.service" ];
-      requires = [ "pia-vpn-wireguard.service" ];
-
-      path = with pkgs; [ curl ];
-
-      serviceConfig = {
-        Type = "oneshot";
-      };
-
-      script = refreshPIAPort;
-    };
-
-    vpn-container.config.systemd.timers.pia-vpn-wireguard-forward-port = {
-      enable = portForwarding;
-      partOf = [ "pia-vpn-wireguard-forward-port.service" ];
-      wantedBy = [ "timers.target" ];
-      timerConfig = {
-        OnCalendar = "*:0/10"; # 10 minutes
-        RandomizedDelaySec = "1m"; # vary by 1 min to give PIA servers some relief
-      };
-    };
-
-    age.secrets."pia-login.conf".file = ../../secrets/pia-login.age;
-  };
-}
--- a/common/network/vpn.nix
+++ b/common/network/vpn.nix
@@ -1,106 +0,0 @@
-{ config, lib, allModules, ... }:
-
-with lib;
-
-let
-  cfg = config.vpn-container;
-in
-{
-  options.vpn-container = {
-    enable = mkEnableOption "Enable VPN container";
-
-    containerName = mkOption {
-      type = types.str;
-      default = "vpn";
-      description = ''
-        Name of the VPN container.
-      '';
-    };
-
-    mounts = mkOption {
-      type = types.listOf types.str;
-      default = [ "/var/lib" ];
-      example = "/home/example";
-      description = ''
-        List of mounts on the host to bind to the vpn container.
-      '';
-    };
-
-    useOpenVPN = mkEnableOption "Uses OpenVPN instead of wireguard for PIA VPN connection";
-
-    config = mkOption {
-      type = types.anything;
-      default = { };
-      example = ''
-        {
-          services.nginx.enable = true;
-        }
-      '';
-      description = ''
-        NixOS config for the vpn container.
-      '';
-    };
-  };
-
-  config = mkIf cfg.enable {
-    pia.wireguard.enable = !cfg.useOpenVPN;
-    pia.wireguard.forwardPortForTransmission = !cfg.useOpenVPN;
-
-    containers.${cfg.containerName} = {
-      ephemeral = true;
-      autoStart = true;
-
-      bindMounts = mkMerge ([{
-        "/run/agenix" = {
-          hostPath = "/run/agenix";
-          isReadOnly = true;
-        };
-      }] ++ (lists.forEach cfg.mounts (mount:
-        {
-          "${mount}" = {
-            hostPath = mount;
-            isReadOnly = false;
-          };
-        }
-      )));
-
-      enableTun = cfg.useOpenVPN;
-      privateNetwork = true;
-      hostAddress = "172.16.100.1";
-      localAddress = "172.16.100.2";
-
-      config = {
-        imports = allModules ++ [ cfg.config ];
-
-        # networking.firewall.enable = mkForce false;
-        networking.firewall.trustedInterfaces = [
-          # completely trust internal interface to host
-          "eth0"
-        ];
-
-        pia.openvpn.enable = cfg.useOpenVPN;
-        pia.openvpn.server = "swiss.privacy.network"; # swiss vpn
-
-        # TODO fix so it does run it's own resolver again
-        # run it's own DNS resolver
-        networking.useHostResolvConf = false;
-        # services.resolved.enable = true;
-        networking.nameservers = [ "1.1.1.1" "8.8.8.8" ];
-      };
-    };
-
-    # load secrets the container needs
-    age.secrets = config.containers.${cfg.containerName}.config.age.secrets;
-
-    # forwarding for vpn container (only for OpenVPN)
-    networking.nat.enable = mkIf cfg.useOpenVPN true;
-    networking.nat.internalInterfaces = mkIf cfg.useOpenVPN [
-      "ve-${cfg.containerName}"
-    ];
-    networking.ip_forward = mkIf cfg.useOpenVPN true;
-
-    # assumes only one potential interface
-    networking.usePredictableInterfaceNames = false;
-    networking.nat.externalInterface = "eth0";
-  };
-}
--- a/common/network/vpnfailsafe.sh
+++ b/common/network/vpnfailsafe.sh
@@ -1,187 +0,0 @@
-#!/usr/bin/env bash
-
-set -eEo pipefail
-
-# $@ := ""
-set_route_vars() {
-    local network_var
-    local -a network_vars; read -ra network_vars <<<"${!route_network_*}"
-    for network_var in "${network_vars[@]}"; do
-        local -i i="${network_var#route_network_}"
-        local -a vars=("route_network_$i" "route_netmask_$i" "route_gateway_$i" "route_metric_$i")
-        route_networks[i]="${!vars[0]}"
-        route_netmasks[i]="${!vars[1]:-255.255.255.255}"
-        route_gateways[i]="${!vars[2]:-$route_vpn_gateway}"
-        route_metrics[i]="${!vars[3]:-0}"
-    done
-}
-
-# Configuration.
-readonly prog="$(basename "$0")"
-readonly private_nets="127.0.0.0/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16"
-declare -a remotes cnf_remote_domains cnf_remote_ips route_networks route_netmasks route_gateways route_metrics
-read -ra remotes <<<"$(env|grep -oP '^remote_[0-9]+=.*'|sort -n|cut -d= -f2|tr '\n' '\t')"
-read -ra cnf_remote_domains <<<"$(printf '%s\n' "${remotes[@]%%*[0-9]}"|sort -u|tr '\n' '\t')"
-read -ra cnf_remote_ips <<<"$(printf '%s\n' "${remotes[@]##*[!0-9.]*}"|sort -u|tr '\n' '\t')"
-set_route_vars
-read -ra numbered_vars <<<"${!foreign_option_*} ${!proto_*} ${!remote_*} ${!remote_port_*} \
-                           ${!route_network_*} ${!route_netmask_*} ${!route_gateway_*} ${!route_metric_*}"
-readonly numbered_vars "${numbered_vars[@]}" dev ifconfig_local ifconfig_netmask ifconfig_remote \
-         route_net_gateway route_vpn_gateway script_type trusted_ip trusted_port untrusted_ip untrusted_port \
-         remotes cnf_remote_domains cnf_remote_ips route_networks route_netmasks route_gateways route_metrics
-readonly cur_remote_ip="${trusted_ip:-$untrusted_ip}"
-readonly cur_port="${trusted_port:-$untrusted_port}"
-
-# $@ := ""
-update_hosts() {
-    if remote_entries="$(getent -s dns hosts "${cnf_remote_domains[@]}"|grep -v :)"; then
-        local -r beg="# VPNFAILSAFE BEGIN" end="# VPNFAILSAFE END"
-        {
-            sed -e "/^$beg/,/^$end/d" /etc/hosts
-            echo -e "$beg\\n$remote_entries\\n$end"
-        } >/etc/hosts.vpnfailsafe
-        chmod --reference=/etc/hosts /etc/hosts.vpnfailsafe
-        mv /etc/hosts.vpnfailsafe /etc/hosts
-    fi
-}
-
-# $@ := "up" | "down"
-update_routes() {
-    local -a resolved_ips
-    read -ra resolved_ips <<<"$(getent -s files hosts "${cnf_remote_domains[@]:-ENOENT}"|cut -d' ' -f1|tr '\n' '\t' || true)"
-    local -ar remote_ips=("$cur_remote_ip" "${resolved_ips[@]}" "${cnf_remote_ips[@]}")
-    if [[ "$*" == up ]]; then
-        for remote_ip in "${remote_ips[@]}"; do
-            if [[ -n "$remote_ip" && -z "$(ip route show "$remote_ip")" ]]; then
-                ip route add "$remote_ip" via "$route_net_gateway"
-            fi
-        done
-        for net in 0.0.0.0/1 128.0.0.0/1; do
-            if [[ -z "$(ip route show "$net")" ]]; then
-                ip route add "$net" via "$route_vpn_gateway"
-            fi
-        done
-        for i in $(seq 1 "${#route_networks[@]}"); do
-            if [[ -z "$(ip route show "${route_networks[i]}/${route_netmasks[i]}")" ]]; then
-                ip route add "${route_networks[i]}/${route_netmasks[i]}" \
-                  via "${route_gateways[i]}" metric "${route_metrics[i]}" dev "$dev"
-            fi
-        done
-    elif [[ "$*" == down ]]; then
-        for route in "${remote_ips[@]}" 0.0.0.0/1 128.0.0.0/1; do
-            if [[ -n "$route" && -n "$(ip route show "$route")" ]]; then
-                ip route del "$route"
-            fi
-        done
-        for i in $(seq 1 "${#route_networks[@]}"); do
-            if [[ -n "$(ip route show "${route_networks[i]}/${route_netmasks[i]}")" ]]; then
-                ip route del "${route_networks[i]}/${route_netmasks[i]}"
-            fi
-        done
-    fi
-}
-
-# $@ := ""
-update_firewall() {
-    # $@ := "INPUT" | "OUTPUT" | "FORWARD"
-    insert_chain() {
-        if iptables -C "$*" -j "VPNFAILSAFE_$*" 2>/dev/null; then
-            iptables -D "$*" -j "VPNFAILSAFE_$*"
-            for opt in F X; do
-                iptables -"$opt" "VPNFAILSAFE_$*"
-            done
-        fi
-        iptables -N "VPNFAILSAFE_$*"
-        iptables -I "$*" -j "VPNFAILSAFE_$*"
-    }
-
-    # $@ := "INPUT" | "OUTPUT"
-    accept_remotes() {
-        case "$@" in
-            INPUT)  local -r icmp_type=reply   io=i sd=s states="";;
-            OUTPUT) local -r icmp_type=request io=o sd=d states=NEW,;;
-        esac
-        local -r public_nic="$(ip route show "$cur_remote_ip"|cut -d' ' -f5)"
-        local -ar suf=(-m conntrack --ctstate "$states"RELATED,ESTABLISHED -"$io" "${public_nic:?}" -j ACCEPT)
-        icmp_rule() {
-            iptables "$1" "$2" -p icmp --icmp-type "echo-$icmp_type" -"$sd" "$3" "${suf[@]/%ACCEPT/RETURN}"
-        }
-        for ((i=1; i <= ${#remotes[*]}; ++i)); do
-            local port="remote_port_$i"
-            local proto="proto_$i"
-            iptables -A "VPNFAILSAFE_$*" -p "${!proto%-client}" -"$sd" "${remotes[i-1]}" --"$sd"port "${!port}" "${suf[@]}"
-            if ! icmp_rule -C "VPNFAILSAFE_$*" "${remotes[i-1]}" 2>/dev/null; then
-                icmp_rule -A "VPNFAILSAFE_$*" "${remotes[i-1]}"
-            fi
-        done
-        if ! iptables -S|grep -q "^-A VPNFAILSAFE_$* .*-$sd $cur_remote_ip/32 .*-j ACCEPT$"; then
-            for p in tcp udp; do
-                iptables -A "VPNFAILSAFE_$*" -p "$p" -"$sd" "$cur_remote_ip" --"$sd"port "${cur_port}" "${suf[@]}"
-            done
-            icmp_rule -A "VPNFAILSAFE_$*" "$cur_remote_ip"
-        fi
-    }
-
-    # $@ := "OUTPUT" | "FORWARD"
-    reject_dns() {
-        for proto in udp tcp; do
-            iptables -A "VPNFAILSAFE_$*" -p "$proto" --dport 53 ! -o "$dev" -j REJECT
-        done
-    }
-
-    # $@ := "INPUT" | "OUTPUT" | "FORWARD"
-    pass_private_nets() { 
-        case "$@" in
-            INPUT) local -r io=i sd=s;;&
-            OUTPUT|FORWARD) local -r io=o sd=d;;&
-            INPUT) local -r vpn="${ifconfig_remote:-$ifconfig_local}/${ifconfig_netmask:-32}"
-               iptables -A "VPNFAILSAFE_$*" -"$sd" "$vpn" -"$io" "$dev" -j RETURN
-               for i in $(seq 1 "${#route_networks[@]}"); do
-                   iptables -A "VPNFAILSAFE_$*" -"$sd" "${route_networks[i]}/${route_netmasks[i]}" -"$io" "$dev" -j RETURN
-               done;;&
-            *) iptables -A "VPNFAILSAFE_$*" -"$sd" "$private_nets" ! -"$io" "$dev" -j RETURN;;&
-            INPUT) iptables -A "VPNFAILSAFE_$*" -s "$private_nets" -i "$dev" -j DROP;;&
-            *) for iface in "$dev" lo+; do
-                   iptables -A "VPNFAILSAFE_$*" -"$io" "$iface" -j RETURN
-               done;;
-        esac
-    }
-
-    # $@ := "INPUT" | "OUTPUT" | "FORWARD"
-    drop_other() {
-        iptables -A "VPNFAILSAFE_$*" -j DROP
-    }
-
-    for chain in INPUT OUTPUT FORWARD; do
-        insert_chain "$chain"
-        [[ $chain == FORWARD ]] || accept_remotes "$chain"
-        [[ $chain == INPUT ]] || reject_dns "$chain"
-        pass_private_nets "$chain"
-        drop_other "$chain"
-    done
-}
-
-# $@ := ""
-cleanup() {
-    update_resolv down
-    update_routes down
-}
-trap cleanup INT TERM
-
-# $@ := line_number exit_code
-err_msg() {
-    echo "$0:$1: \`$(sed -n "$1,+0{s/^\\s*//;p}" "$0")' returned $2" >&2
-    cleanup
-}
-trap 'err_msg "$LINENO" "$?"' ERR
-
-# $@ := ""
-main() {
-    case "${script_type:-down}" in
-        up) for f in hosts routes firewall; do "update_$f" up; done;;
-        down) update_routes down
-              update_resolv down;;
-    esac
-}
-
-main
--- a/common/ntfy-alerts.nix
+++ b/common/ntfy-alerts.nix
@@ -16,6 +16,12 @@ in
      default = "service-failures";
      description = "ntfy topic to publish alerts to.";
    };
+
+    curlExtraArgs = lib.mkOption {
+      type = lib.types.str;
+      default = "";
+      description = "Extra arguments to pass to curl (e.g. --proxy http://host:port).";
+    };
  };

  config = lib.mkIf config.thisMachine.hasRole."ntfy" {
@@ -33,6 +39,7 @@ in
          ${lib.getExe pkgs.curl} \
            --fail --silent --show-error \
            --max-time 30 --retry 3 \
+            ${cfg.curlExtraArgs} \
            -H "Authorization: Bearer $NTFY_TOKEN" \
            -H "Title: Service failure on ${config.networking.hostName}" \
            -H "Priority: high" \
--- a/common/sandboxed-workspace/vm.nix
+++ b/common/sandboxed-workspace/vm.nix
@@ -133,8 +133,15 @@ let
  };
 in
 {
-  config = mkIf (cfg.enable && vmWorkspaces != { }) {
-    # Convert VM workspace configs to microvm.nix format
-    microvm.vms = mapAttrs mkVmConfig vmWorkspaces;
-  };
+  config = mkMerge [
+    (mkIf (cfg.enable && vmWorkspaces != { }) {
+      # Convert VM workspace configs to microvm.nix format
+      microvm.vms = mapAttrs mkVmConfig vmWorkspaces;
+    })
+
+    # microvm.nixosModules.host enables KSM, but /sys is read-only in containers
+    (mkIf config.boot.isContainer {
+      hardware.ksm.enable = false;
+    })
+  ];
 }
--- a/flake.lock
+++ b/flake.lock
@@ -250,11 +250,11 @@
        "spectrum": "spectrum"
      },
      "locked": {
-        "lastModified": 1771802632,
-        "narHash": "sha256-UAH8YfrHRvXAMeFxUzJ4h4B1loz1K1wiNUNI8KiPqOg=",
+        "lastModified": 1771712688,
+        "narHash": "sha256-Pf4CaRoOLQV02m2POPA+0EWvb3gVdpaiS0hNNVZhO3c=",
        "owner": "astro",
        "repo": "microvm.nix",
-        "rev": "b67e3d80df3ec35bdfd3a00ad64ee437ef4fcded",
+        "rev": "a3abc020a3d8e624e145f4144ed40702f788ea32",
        "type": "github"
      },
      "original": {
--- a/machines/storage/s0/default.nix
+++ b/machines/storage/s0/default.nix
@@ -55,123 +55,135 @@
  users.users.googlebot.extraGroups = [ "transmission" ];
  users.groups.transmission.gid = config.ids.gids.transmission;

-  vpn-container.enable = true;
-  vpn-container.mounts = [
-    "/var/lib"
-    "/data/samba/Public"
-  ];
-  vpn-container.config = {
-    # servarr services
-    services.prowlarr.enable = true;
-    services.sonarr.enable = true;
-    services.sonarr.user = "public_data";
-    services.sonarr.group = "public_data";
-    services.bazarr.enable = true;
-    services.bazarr.user = "public_data";
-    services.bazarr.group = "public_data";
-    services.radarr.enable = true;
-    services.radarr.user = "public_data";
-    services.radarr.group = "public_data";
-    services.lidarr.enable = true;
-    services.lidarr.user = "public_data";
-    services.lidarr.group = "public_data";
-    services.recyclarr = {
-      enable = true;
-      configuration = {
-        radarr.radarr_main = {
-          api_key = {
-            _secret = "/run/credentials/recyclarr.service/radarr-api-key";
-          };
-          base_url = "http://localhost:7878";
+  pia-vpn = {
+    enable = true;
+    serverLocation = "swiss";

-          quality_definition.type = "movie";
+    containers.transmission = {
+      ip = "10.100.0.10";
+      mounts."/var/lib".hostPath = "/var/lib";
+      mounts."/data/samba/Public".hostPath = "/data/samba/Public";
+      receiveForwardedPort = { protocol = "both"; };
+      onPortForwarded = ''
+        # Notify Transmission of the PIA-assigned peer port via RPC
+        for i in $(seq 1 30); do
+          curlout=$(curl -s "http://transmission.containers:80/transmission/rpc" 2>/dev/null) && break
+          sleep 2
+        done
+        regex='X-Transmission-Session-Id: (\w*)'
+        if [[ $curlout =~ $regex ]]; then
+          sessionId=''${BASH_REMATCH[1]}
+          curl -s "http://transmission.containers:80/transmission/rpc" \
+            -d "{\"method\":\"session-set\",\"arguments\":{\"peer-port\":$PORT}}" \
+            -H "X-Transmission-Session-Id: $sessionId"
+        fi
+      '';
+      config = {
+        services.transmission = {
+          enable = true;
+          package = pkgs.transmission_4;
+          performanceNetParameters = true;
+          user = "public_data";
+          group = "public_data";
+          settings = {
+            "download-dir" = "/data/samba/Public/Media/Transmission";
+            "incomplete-dir" = "/var/lib/transmission/.incomplete";
+            "incomplete-dir-enabled" = true;
+
+            "rpc-enabled" = true;
+            "rpc-port" = 80;
+            "rpc-bind-address" = "0.0.0.0";
+            "rpc-whitelist" = "127.0.0.1,10.100.*.*,192.168.*.*";
+            "rpc-host-whitelist-enabled" = false;
+
+            "port-forwarding-enabled" = true;
+            "peer-port" = 51413;
+            "peer-port-random-on-start" = false;
+
+            "encryption" = 1;
+            "lpd-enabled" = true;
+            "dht-enabled" = true;
+            "pex-enabled" = true;
+
+            "blocklist-enabled" = true;
+            "blocklist-updates-enabled" = true;
+            "blocklist-url" = "https://github.com/Naunter/BT_BlockLists/raw/master/bt_blocklists.gz";
+
+            "ratio-limit" = 3;
+            "ratio-limit-enabled" = true;
+
+            "download-queue-enabled" = true;
+            "download-queue-size" = 20;
+          };
+        };
+        # https://github.com/NixOS/nixpkgs/issues/258793
+        systemd.services.transmission.serviceConfig = {
+          RootDirectoryStartOnly = lib.mkForce (lib.mkForce false);
+          RootDirectory = lib.mkForce (lib.mkForce "");
        };
-        sonarr.sonarr_main = {
-          api_key = {
-            _secret = "/run/credentials/recyclarr.service/sonarr-api-key";
-          };
-          base_url = "http://localhost:8989";

-          quality_definition.type = "series";
+        users.groups.public_data.gid = 994;
+        users.users.public_data = {
+          isSystemUser = true;
+          group = "public_data";
+          uid = 994;
        };
      };
    };

-    systemd.services.recyclarr.serviceConfig.LoadCredential = [
-      "radarr-api-key:/run/agenix/radarr-api-key"
-      "sonarr-api-key:/run/agenix/sonarr-api-key"
-    ];
+    containers.servarr = {
+      ip = "10.100.0.11";
+      mounts."/var/lib".hostPath = "/var/lib";
+      mounts."/data/samba/Public".hostPath = "/data/samba/Public";
+      mounts."/run/agenix" = { hostPath = "/run/agenix"; isReadOnly = true; };
+      config = {
+        services.prowlarr.enable = true;
+        services.sonarr.enable = true;
+        services.sonarr.user = "public_data";
+        services.sonarr.group = "public_data";
+        services.bazarr.enable = true;
+        services.bazarr.user = "public_data";
+        services.bazarr.group = "public_data";
+        services.radarr.enable = true;
+        services.radarr.user = "public_data";
+        services.radarr.group = "public_data";
+        services.lidarr.enable = true;
+        services.lidarr.user = "public_data";
+        services.lidarr.group = "public_data";
+        services.recyclarr = {
+          enable = true;
+          configuration = {
+            radarr.radarr_main = {
+              api_key = {
+                _secret = "/run/credentials/recyclarr.service/radarr-api-key";
+              };
+              base_url = "http://localhost:7878";
+              quality_definition.type = "movie";
+            };
+            sonarr.sonarr_main = {
+              api_key = {
+                _secret = "/run/credentials/recyclarr.service/sonarr-api-key";
+              };
+              base_url = "http://localhost:8989";
+              quality_definition.type = "series";
+            };
+          };
+        };

-    services.transmission = {
-      enable = true;
-      package = pkgs.transmission_4;
-      performanceNetParameters = true;
-      user = "public_data";
-      group = "public_data";
-      settings = {
-        /* directory settings */
-        # "watch-dir" = "/srv/storage/Transmission/To-Download";
-        # "watch-dir-enabled" = true;
-        "download-dir" = "/data/samba/Public/Media/Transmission";
-        "incomplete-dir" = "/var/lib/transmission/.incomplete";
-        "incomplete-dir-enabled" = true;
+        systemd.services.recyclarr.serviceConfig.LoadCredential = [
+          "radarr-api-key:/run/agenix/radarr-api-key"
+          "sonarr-api-key:/run/agenix/sonarr-api-key"
+        ];

-        /* web interface, accessible from local network */
-        "rpc-enabled" = true;
-        "rpc-bind-address" = "0.0.0.0";
-        "rpc-whitelist" = "127.0.0.1,192.168.*.*,172.16.*.*";
-        "rpc-host-whitelist" = "void,192.168.*.*,172.16.*.*";
-        "rpc-host-whitelist-enabled" = false;
-
-        "port-forwarding-enabled" = true;
-        "peer-port" = 50023;
-        "peer-port-random-on-start" = false;
-
-        "encryption" = 1;
-        "lpd-enabled" = true; /* local peer discovery */
-        "dht-enabled" = true; /* dht peer discovery in swarm */
-        "pex-enabled" = true; /* peer exchange */
-
-        /* ip blocklist */
-        "blocklist-enabled" = true;
-        "blocklist-updates-enabled" = true;
-        "blocklist-url" = "https://github.com/Naunter/BT_BlockLists/raw/master/bt_blocklists.gz";
-
-        /* download speed settings */
-        # "speed-limit-down" = 1200;
-        # "speed-limit-down-enabled" = false;
-        # "speed-limit-up" = 500;
-        # "speed-limit-up-enabled" = true;
-
-        /* seeding limit */
-        "ratio-limit" = 3;
-        "ratio-limit-enabled" = true;
-
-        "download-queue-enabled" = true;
-        "download-queue-size" = 20; # gotta go fast
+        users.groups.public_data.gid = 994;
+        users.users.public_data = {
+          isSystemUser = true;
+          group = "public_data";
+          uid = 994;
+        };
      };
    };
-    # https://github.com/NixOS/nixpkgs/issues/258793
-    systemd.services.transmission.serviceConfig = {
-      RootDirectoryStartOnly = lib.mkForce (lib.mkForce false);
-      RootDirectory = lib.mkForce (lib.mkForce "");
-    };
-
-    users.groups.public_data.gid = 994;
-    users.users.public_data = {
-      isSystemUser = true;
-      group = "public_data";
-      uid = 994;
-    };
  };
-  pia.wireguard.badPortForwardPorts = [
-    9696 # prowlarr
-    8989 # sonarr
-    6767 # bazarr
-    7878 # radarr
-    8686 # lidarr
-    9091 # transmission web
-  ];
  age.secrets.radarr-api-key.file = ../../../secrets/radarr-api-key.age;
  age.secrets.sonarr-api-key.file = ../../../secrets/sonarr-api-key.age;

@@ -215,12 +227,12 @@
          };
      in
      lib.mkMerge [
-        (mkVirtualHost "bazarr.s0.neet.dev" "http://vpn.containers:6767")
-        (mkVirtualHost "radarr.s0.neet.dev" "http://vpn.containers:7878")
-        (mkVirtualHost "lidarr.s0.neet.dev" "http://vpn.containers:8686")
-        (mkVirtualHost "sonarr.s0.neet.dev" "http://vpn.containers:8989")
-        (mkVirtualHost "prowlarr.s0.neet.dev" "http://vpn.containers:9696")
-        (mkVirtualHost "transmission.s0.neet.dev" "http://vpn.containers:9091")
+        (mkVirtualHost "bazarr.s0.neet.dev" "http://servarr.containers:6767")
+        (mkVirtualHost "radarr.s0.neet.dev" "http://servarr.containers:7878")
+        (mkVirtualHost "lidarr.s0.neet.dev" "http://servarr.containers:8686")
+        (mkVirtualHost "sonarr.s0.neet.dev" "http://servarr.containers:8989")
+        (mkVirtualHost "prowlarr.s0.neet.dev" "http://servarr.containers:9696")
+        (mkVirtualHost "transmission.s0.neet.dev" "http://transmission.containers:80")
        (mkVirtualHost "unifi.s0.neet.dev" "https://localhost:8443")
        (mkVirtualHost "music.s0.neet.dev" "http://localhost:4533")
        (mkVirtualHost "jellyfin.s0.neet.dev" "http://localhost:8096")
Author	SHA1	Message	Date
Zuckerberg	39009cbc18	use container hostname alias for script All checks were successful Check Flake / check-flake (push) Successful in 3m17s Details	2026-02-26 00:17:47 -08:00
Zuckerberg	3365a1652c	restore `port` option	2026-02-26 00:16:39 -08:00
Zuckerberg	6466406975	fix transmission port forwarding All checks were successful Check Flake / check-flake (push) Successful in 3m25s Details	2026-02-26 00:08:40 -08:00
Zuckerberg	4eb0401263	disable services which don't work in nixos containers All checks were successful Check Flake / check-flake (push) Successful in 3m17s Details	2026-02-25 23:37:26 -08:00
Zuckerberg	f4a4edf478	fix networking online target + ntfy notifications All checks were successful Check Flake / check-flake (push) Successful in 3m36s Details	2026-02-25 23:24:23 -08:00
Zuckerberg	1ac3f05e3e	define vpn container hosts within containers too	2026-02-25 23:23:49 -08:00
Zuckerberg	c1030c1dfe	remove debugging messages All checks were successful Check Flake / check-flake (push) Successful in 3m28s Details	2026-02-25 00:31:31 -08:00
Zuckerberg	52469693e3	maybe fix All checks were successful Check Flake / check-flake (push) Successful in 3m17s Details	2026-02-25 00:25:15 -08:00
Zuckerberg	ffce43b8d0	debug Some checks failed Check Flake / check-flake (push) Has been cancelled Details	2026-02-25 00:22:07 -08:00
Zuckerberg	96a6007693	debug	2026-02-25 00:14:19 -08:00
Zuckerberg	32cb438db9	networking fixes All checks were successful Check Flake / check-flake (push) Successful in 3m20s Details	2026-02-25 00:10:49 -08:00
Zuckerberg	0368661e24	networking fixes Some checks failed Check Flake / check-flake (push) Has been cancelled Details	2026-02-25 00:08:27 -08:00
Zuckerberg	12209b69b8	networking fixes All checks were successful Check Flake / check-flake (push) Successful in 3m21s Details	2026-02-24 23:55:02 -08:00
Zuckerberg	3bc41dfdb3	networking fixes Some checks failed Check Flake / check-flake (push) Failing after 1m7s Details	2026-02-24 23:53:50 -08:00
Zuckerberg	1cbbe64707	networking fixes All checks were successful Check Flake / check-flake (push) Successful in 3m18s Details	2026-02-24 23:46:51 -08:00
Zuckerberg	6191e4060f	networking fixes All checks were successful Check Flake / check-flake (push) Successful in 3m18s Details	2026-02-24 23:37:15 -08:00
googlebot	a0fcacdcf9	Rewrite PIA VPN as multi-container bridge architecture All checks were successful Check Flake / check-flake (push) Successful in 4m44s Details Replace the single VPN container (veth pair, host-side auth scripts) with a multi-container setup on a shared bridge network: - Dedicated VPN container handles all PIA auth, WireGuard config, NAT, and optional port forwarding DNAT - Service containers default-route through VPN container (leak-proof by topology) - Host runs tinyproxy on bridge for PIA API bootstrap before WG is up - WG interface is still created in host netns and moved into VPN container namespace - Monthly renewal to ensure that connection stays up (PIA allows connections to last up to 2 months) - Drop OpenVPN support entirely	2026-02-24 23:11:46 -08:00