Continue adding deployment config

flake.nix

@@ -80,14 +80,28 @@
             options.wish.service = {
               enable = mkEnableOption "Enable the wish service.";
 
+              stateDir = mkOption {
+                type = types.str;
+                default = "/var/lib/wish";
+                description = lib.mdDoc "Wish data directory.";
+              };
+
               environmentFile = mkOption {
                 type = types.path;
                 description = lib.mdDoc ''
                   Environment file as defined in {manpage}`systemd.exec(5)` passed to the service.
+                '';
+              };
 
-                  This must contain at least `LIVEBOOK_PASSWORD` or
-                  `LIVEBOOK_TOKEN_ENABLED=false`.  See `livebook server --help`
-                  for other options.'';
+              databasePath = mkOption {
+                type = types.str;
+                default = "${cfg.stateDir}/data/wish.db";
+                description = lib.mdDoc "Path to the sqlite3 database file.";
+              };
+
+              secretKeyBase = mkOption {
+                type = types.str;
+                description = lib.mdDoc "Phoenix secret key base.";
               };
             };
 
@@ -102,6 +116,11 @@
                   Restart = "on-failure";
                   ExecStart = "${pkg}/bin/wish start";
                 };
+
+                environment = {
+                  DATABASE_PATH = cfg.databasePath;
+                  SECRET_KEY_BASE = cfg.secretKeyBase;
+                };
               };
             };
           };