feat(river-shifttags): add river-shifttags package

home-manager/river-shifttags/flake.lock

@@ -0,0 +1,26 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1722869614,
+        "narHash": "sha256-7ojM1KSk3mzutD7SkrdSflHXEujPvW1u7QuqWoTLXQU=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "883180e6550c1723395a3a342f830bfc5c371f6b",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-24.05",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

home-manager/river-shifttags/flake.nix

@@ -0,0 +1,53 @@
+{
+  description = "A small utility for the river Wayland compositor to rotate the focused tags.";
+  inputs = {
+    nixpkgs.url = "nixpkgs/nixos-24.05";
+  };
+  outputs = { nixpkgs, ... }:
+  let
+    system = "x86_64-linux";
+    pkgs = import nixpkgs { inherit system; };
+    dependencies = with pkgs; [
+      pkg-config
+      pixman
+      wayland
+      wayland-scanner
+    ];
+    version = "0.2.2";
+  in
+  {
+    packages.${system}.default = pkgs.stdenv.mkDerivation {
+      pname = "river-shifttags";
+      inherit version;
+
+      src = pkgs.fetchFromGitLab {
+        owner = "logistic-bot";
+        repo = "river-shifttags";
+        rev = "1cb09ab24dc5fd08453bbbb03982a9e544c36eae";
+        hash = "sha256-Fvp7VucysYjoMq3hbeIQF6PeyBveHw2y+AsTLAy2fYw=";
+      };
+
+      outputs = [ "out" "man" ];
+
+      nativeBuildInputs = dependencies;
+
+      installPhase = ''
+        mkdir -p $out/usr/local/bin
+        mkdir -p $man/share/man
+        install -Dm 755 -t "$out/bin" ./river-shifttags
+        install -Dm 644 -t "$man/share/man/man1" ./river-shifttags.1
+      '';
+
+      doInstallCheck = true;
+      installCheckPhase = ''
+        $out/bin/river-shifttags --help
+      '';
+    };
+    devShells.${system}.default = pkgs.mkShell {
+      packages = dependencies ++ [
+        pkgs.gdb
+      ];
+      shellHook = "exec zsh";
+    };
+  };
+}