Improve nix setup

.gitignore

@@ -1,4 +1,24 @@
-/target
-flake.lock
-.direnv/
 *.env
+
+target
+**/*.rs.bk
+.idea
+*.iml
+/result*
+*.log
+*~
+
+# cachix tmp file
+store-path-pre-build
+
+# Devenv
+.devenv*
+devenv.local.nix
+
+# direnv
+.direnv
+
+# pre-commit
+.pre-commit-config.yaml
+
+template/flake.lock

README.md

@@ -12,6 +12,31 @@ just init  # Will init the database, and build the app image
 just run   # Will run the lwn-sub-snoozer to update the database and the RSS file
 ```
 
+## Nix setup
+
+For my server, I have the following setup:
+
+```nix
+systemd.timers."rssify-update" = {
+  wantedBy = [ "timers.target" ];
+    timerConfig = {
+      OnBootSec = "5m";
+      OnUnitActiveSec = "12h";
+      Unit = "rssify-update.service";
+    };
+};
+
+systemd.services."rssify-update" = {
+  script = ''
+    ${pkgs.rssify}/bin/echo "Hello World"
+  '';
+  serviceConfig = {
+    Type = "oneshot";
+    User = "root";
+  };
+};
+```
+
 ## TODO
 
 - [ ] Nix service with timer

default.nix

@@ -0,0 +1,16 @@
+{pkgs ? import <nixpkgs> {}}: let
+  manifest = (pkgs.lib.importTOML ./Cargo.toml).package;
+in
+  pkgs.rustPlatform.buildRustPackage {
+    pname = manifest.name;
+    version = manifest.version;
+    cargoLock.lockFile = ./Cargo.lock;
+    src = pkgs.lib.cleanSource ./.;
+
+    nativeBuildInputs = with pkgs; [
+      pkg-config
+    ];
+    buildInputs = with pkgs; [
+      openssl
+    ];
+  }

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1756217674,
+        "narHash": "sha256-TH1SfSP523QI7kcPiNtMAEuwZR3Jdz0MCDXPs7TS8uo=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "4e7667a90c167f7a81d906e5a75cba4ad8bee620",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-25.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -1,41 +1,22 @@
 {
   description = "lwn-sub-snoozer";
   inputs = {
-    flake-utils.url = "github:numtide/flake-utils";
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
   };
 
   outputs = {
     self,
     nixpkgs,
-    flake-utils,
-  }:
-    flake-utils.lib.eachDefaultSystem (system: let
-      pkgs = nixpkgs.legacyPackages.${system};
+  }: let
+    supportedSystems = ["x86_64-linux"];
+    forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
+    pkgsFor = nixpkgs.legacyPackages;
   in {
-      packages = {
-        default = self.packages.${system}.myapp;
-      };
-      # $ nix develop
-      devShells.default = pkgs.mkShell {
-        LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath [pkgs.openssl];
-        packages = [
-          pkgs.pkg-config
-          pkgs.openssl
-          pkgs.postgresql
-
-          # Nix
-          pkgs.nixpkgs-fmt
-          pkgs.nil
-          pkgs.nixd
-          pkgs.alejandra
-
-          # Rust
-          pkgs.rustfmt
-          pkgs.rustc
-          pkgs.cargo
-          pkgs.rust-analyzer
-        ];
-      };
+    packages = forAllSystems (system: {
+      default = pkgsFor.${system}.callPackage ./. {};
     });
+    devShells = forAllSystems (system: {
+      default = pkgsFor.${system}.callPackage ./shell.nix {};
+    });
+  };
 }

shell.nix

@@ -0,0 +1,11 @@
+{pkgs ? import <nixpkgs> {}}:
+pkgs.mkShell {
+  inputsFrom = [(pkgs.callPackage ./default.nix {})];
+  buildInputs = with pkgs; [
+    rust-analyzer
+    alejandra
+    clippy
+    nixd
+    nil
+  ];
+}