feat: moved to C# thanks to deepseek

flake.nix

@@ -1,32 +1,126 @@
 {
-  description = "Phenix website";
+  description = "Balle Phenix website — ASP.NET + SQLite";
 
   inputs = {
     nixpkgs.url = "nixpkgs/nixos-unstable";
     flake-utils.url = "github:numtide/flake-utils";
   };
 
-  outputs = { self, nixpkgs, flake-utils }:
-
+  outputs = { self, nixpkgs, flake-utils, ... }:
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = nixpkgs.legacyPackages.${system};
-        build-static-files = pkgs.stdenv.mkDerivation {
-          name = "phenix-website-static-assets";
-          src = ./static;
-          buildPhase = ''
-            find . -type f -exec ${pkgs.brotli}/bin/brotli -9 -f -k {} \;
-          '';
-          installPhase = ''
-            cp -r . $out
+        dotnet = pkgs.dotnetCorePackages.sdk_9_0;
+        pythonEnv = pkgs.python3.withPackages (ps: [ ps.requests ]);
 
+        phenix-website = pkgs.buildDotnetModule {
+          name = "phenix-website";
+          src = ./.;
+          projectFile = "Phenix.csproj";
+          selfContainedBuild = true;
+          dotnet-sdk = dotnet;
+          dotnet-runtime = pkgs.dotnetCorePackages.runtime_9_0;
+          runtimeIdentifiers = "linux-x64";
+          nugetDeps = ./deps.nix;
+
+          postInstall = ''
+            cp -r static $out/lib/static/
+            cp appsettings.json $out/lib/
           '';
+          meta.mainProgram = "Phenix";
         };
       in {
-        packages = { static = build-static-files; };
+        packages = {
+          default = phenix-website;
+          website = phenix-website;
+        };
+
         devShell = pkgs.mkShell {
           name = "Phenix-Website";
-          buildInputs = with pkgs; [ deno ];
+          buildInputs = [ dotnet pkgs.nuget-to-nix pythonEnv ];
+
+          shellHook = ''
+            export PATH="$PWD/dev/populate-db:$PATH"
+          '';
         };
-      });
+      }) // {
+
+      nixosModules.default = { config, lib, pkgs, ... }:
+        let
+          cfg = config.services.phenix-website;
+          phenix = self.packages.${pkgs.system}.website;
+        pythonEnv = pkgs.python3.withPackages (ps: [ ps.requests ]);
+      in {
+          options.services.phenix-website = {
+            enable = lib.mkEnableOption "Balle Phenix website";
+            domain = lib.mkOption {
+              type = lib.types.str;
+              default = "ballephenix.com";
+            };
+            port = lib.mkOption {
+              type = lib.types.port;
+              default = 8000;
+            };
+            dataDir = lib.mkOption {
+              type = lib.types.path;
+              default = "/var/lib/phenix";
+            };
+            sessionKey = lib.mkOption {
+              type = lib.types.str;
+              default = "";
+            };
+          };
+
+          config = lib.mkIf cfg.enable {
+            systemd.services.phenix-website = {
+              description = "Balle Phenix website";
+              wantedBy = [ "multi-user.target" ];
+              after = [ "network.target" ];
+
+              serviceConfig = {
+                Type = "simple";
+                ExecStart = "${phenix}/lib/Phenix";
+                WorkingDirectory = "${phenix}/lib/";
+                Restart = "always";
+                RestartSec = 5;
+                User = "phenix";
+                Group = "phenix";
+              };
+
+              environment = {
+                ASPNETCORE_URLS = "http://0.0.0.0:${toString cfg.port}";
+                ASPNETCORE_ENVIRONMENT = "Production";
+                ConnectionStrings__Default = "Data Source=${cfg.dataDir}/phenix.db";
+              } // lib.optionalAttrs (cfg.sessionKey != "") {
+                SessionKey = cfg.sessionKey;
+              };
+
+              postStart = ''
+                mkdir -p ${cfg.dataDir}
+              '';
+            };
+
+            users.users.phenix = {
+              isSystemUser = true;
+              group = "phenix";
+              home = cfg.dataDir;
+              createHome = true;
+            };
+
+            users.groups.phenix = {};
+
+            services.nginx = lib.mkIf (cfg.domain != "") {
+              enable = true;
+              virtualHosts.${cfg.domain} = {
+                forceSSL = true;
+                enableACME = true;
+                locations."/" = {
+                  proxyPass = "http://127.0.0.1:${toString cfg.port}";
+                  proxyWebsockets = false;
+                };
+              };
+            };
+          };
+        };
+      };
 }