WIP nix builds

Not working, needs a separate gomuks build

linux/nix/devshell.nix

@@ -0,0 +1,41 @@
+{ pkgs, lib }:
+let
+  android = pkgs.androidenv.composeAndroidPackages {
+    toolsVersion = "26.1.1";
+    platformToolsVersion = "36.0.1";
+    buildToolsVersions = [
+      "35.0.0"
+      "36.0.0"
+    ];
+    cmakeVersions = [ "3.22.1" ];
+    platformVersions = [ "36" ];
+    abiVersions = [
+      "armeabi-v7a"
+      "arm64-v8a"
+    ];
+    includeNDK = true;
+    ndkVersions = [ "28.2.13676358" ];
+  };
+in
+pkgs.mkShell {
+  packages = with pkgs; [
+    go
+    git
+    jdk17
+    flutter
+    android.platform-tools
+  ];
+
+  env = rec {
+    LIBCLANG_PATH = lib.makeLibraryPath [ pkgs.libclang ];
+    LD_LIBRARY_PATH = "./build/native_assets/linux:${lib.makeLibraryPath [ pkgs.zlib ]}";
+    CPATH = lib.makeSearchPath "include" [ pkgs.glibc.dev ];
+
+    ANDROID_HOME = "${android.androidsdk}/libexec/android-sdk";
+    ANDROID_SDK_ROOT = ANDROID_HOME;
+    JAVA_HOME = pkgs.jdk17;
+
+    TOOLS = "${ANDROID_HOME}/build-tools/${"36.0.0"}";
+    GRADLE_OPTS = "-Dorg.gradle.project.android.aapt2FromMavenOverride=${TOOLS}/aapt2";
+  };
+}

linux/nix/package.nix

@@ -0,0 +1,39 @@
+{
+  lib,
+  libclang,
+  flutter,
+  src,
+  go,
+}:
+
+flutter.buildFlutterApplication {
+  pname = "nexus";
+  version = "0.1.0";
+  inherit src;
+
+  preBuild = ''
+    packageRunCustom nexus generate source/scripts test
+    packageRun build_runner build
+  '';
+
+  env.LIBCLANG_PATH = lib.makeLibraryPath [ libclang ];
+
+  nativeBuildInputs = [
+    go
+  ];
+
+  autoPubspecLock = src + "/pubspec.lock";
+
+  gitHashes = {
+    window_size = "sha256-XelNtp7tpZ91QCEcvewVphNUtgQX7xrp5QP0oFo6DgM=";
+    flutter_chat_ui = "sha256-4fuag7lRH5cMBFD3fUzj2K541JwXLoz8HF/4OMr3uhk=";
+    flutter_link_previewer = "sha256-4fuag7lRH5cMBFD3fUzj2K541JwXLoz8HF/4OMr3uhk=";
+  };
+
+  meta = {
+    description = "A simple and user-friendly Matrix client";
+    mainProgram = "nexus";
+    platforms = lib.platforms.linux;
+    maintainers = with lib.maintainers; [ quadradical ];
+  };
+}