packages: Add rmpc

rmpc is a new terminal-based music player for mpd that has image
support. Being written in Rust, it's a good choice as a modern
alternative to ncmpcpp. It even has built-in vim-like keybindings
by default.

assets/rmpc-support-older-rustc.patch

@@ -0,0 +1,28 @@
+diff --git a/Cargo.lock b/Cargo.lock
+index e4e2d1a..72839b4 100644
+--- a/Cargo.lock
++++ b/Cargo.lock
+@@ -198,9 +198,9 @@ dependencies = [
+ 
+ [[package]]
+ name = "bitstream-io"
+-version = "2.5.0"
++version = "2.3.0"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
+-checksum = "3dcde5f311c85b8ca30c2e4198d4326bc342c76541590106f5fa4a50946ea499"
++checksum = "7c12d1856e42f0d817a835fe55853957c85c8c8a470114029143d3f12671446e"
+ 
+ [[package]]
+ name = "built"
+@@ -1376,9 +1376,9 @@ dependencies = [
+ 
+ [[package]]
+ name = "ravif"
+-version = "0.11.8"
++version = "0.11.5"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
+-checksum = "c6ba61c28ba24c0cf8406e025cb29a742637e3f70776e61c27a8a8b72a042d12"
++checksum = "bc13288f5ab39e6d7c9d501759712e6969fcc9734220846fc9ed26cae2cc4234"
+ dependencies = [
+  "avif-serialize",
+  "imgref",

packages/rmpc.nix

@@ -0,0 +1,39 @@
+{ lib
+, rustPlatform
+, fetchFromGitHub
+, pkg-config
+, cmake
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "rmpc";
+  version = "0.2.1";
+
+  src = fetchFromGitHub {
+    owner = "mierak";
+    repo = "rmpc";
+    rev = "v${version}";
+    hash = "sha256-g+yzW0DfaBhJKTikYZ8eqe4pX8nJvbpJ1xaZ3W/O/bo=";
+  };
+
+  cargoHash = "sha256-wFrHgB4wYGeXvfdGf4SJAAL8fE6dAKDLL51Ohmn+1HQ=";
+
+  cargoPatches = [
+    ../assets/rmpc-support-older-rustc.patch
+  ];
+
+  buildType = "debug";
+
+  nativeBuildInputs = [
+    pkg-config
+    cmake
+  ];
+
+  meta = {
+    description = "Configurable, terminal-based media player client with album art support via kitty image protocol";
+    homepage = "https://github.com/mierak/rmpc";
+    license = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [ donovanglover ];
+    mainProgram = "rmpc";
+  };
+}