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+# wafrn-nix
+
+example:
+
+```nix
+{
+  inputs.wafrn-nix.url = "git+https://git.ocbwoy3.dev/kris/wafrn-nix";
+
+  outputs = { self, nixpkgs, wafrn-nix, ... }: {
+    nixosConfigurations.myhost = nixpkgs.lib.nixosSystem {
+      system = "x86_64-linux";
+      modules = [
+        wafrn-nix.nixosModules.default
+        ({ ... }: {
+          virtualisation.docker.enable = true;
+
+          services.wafrn = {
+            enable = true;
+            source = "/srv/wafrn";
+            stateDir = "/var/lib/wafrn";
+            secretsFile = "/run/secrets/wafrn.env";
+
+            # cloudflared doesnt need https:
+            # httpPort = 8080;
+            # httpsPort = null;
+
+            bun2nix = {
+              enable = true;
+              outputFile = "bun.nix";
+            };
+
+            environment = {
+              DOMAIN_NAME = "wafrn.example.com";
+              CACHE_DOMAIN = "cache.wafrn.example.com";
+              MEDIA_DOMAIN = "media.wafrn.example.com";
+              FRONTEND_MEDIA_URL = "https://media.wafrn.example.com";
+              FRONTEND_CACHE_URL = "https://cache.wafrn.example.com/api/cache?media=";
+              FRONTEND_FQDN_URL = "https://wafrn.example.com";
+              ACME_EMAIL = "admin@example.com";
+            };
+          };
+        })
+      ];
+    };
+  };
+}
+```
+
+## External PDS mode
+
+To use a separate PDS (not the bundled Wafrn PDS container):
+
+```nix
+services.wafrn = {
+  enable = true;
+  source = "/srv/wafrn";
+
+  bluesky = {
+    enable = true;
+    useBundledPds = false;
+    pdsDomain = "pds.example.com";
+  };
+
+  environment = {
+    PDS_DOMAIN_NAME = "pds.example.com";
+  };
+};
+```
+
+## Persistence
+
+All important data is persisted in `stateDir`:
+
+- `postgres/` - PostgreSQL data
+- `redis/` - Redis data
+- `uploads/` - user uploads
+- `cache/` - backend cache
+- `caddy/` - Caddy data and cert state
+- `frontend/` - built frontend shared volume
+- `pds/` - bundled PDS data (only when enabled)
+
+## Secrets
+
+Put secrets in `services.wafrn.secretsFile` (dotenv format), for example:
+
+```dotenv
+ADMIN_PASSWORD=super-secret
+JWT_SECRET=another-secret
+SMTP_PASSWORD=smtp-secret
+PDS_JWT_SECRET=pds-jwt-secret
+PDS_ADMIN_PASSWORD=pds-admin-secret
+WEBPUSH_PRIVATE=...
+WEBPUSH_PUBLIC=...
+```
+
+This file is appended at runtime to the generated `.env`, so secret values
+override defaults.
+
+## bun2nix integration
+
+By default, `services.wafrn.bun2nix.enable = true`, which runs `bun2nix` against
+the lock file in the Wafrn source checkout before starting containers.
+
+- Input lock file:
+  `services.wafrn.source + "/" + services.wafrn.bun2nix.lockFile` (default
+  `bun.lock`)
+- Output expression:
+  `services.wafrn.stateDir + "/" + services.wafrn.bun2nix.outputFile` (default
+  `bun.nix`)
+- Copy prefix: `services.wafrn.bun2nix.copyPrefix` (default `./`)
+
+You can disable this behavior with:
+
+```nix
+services.wafrn.bun2nix.enable = false;
+```
+
+## Minimal Cloudflared exposure
+
+If Cloudflared is your only public entrypoint, you can publish only one local
+HTTP port:
+
+```nix
+services.wafrn = {
+  enable = true;
+  source = "/srv/wafrn";
+
+  httpPort = 8080;
+  httpsPort = null;
+  openFirewall = false;
+};
+```
+
+Then point Cloudflared ingress to `http://127.0.0.1:8080`.