add helium browser

flake.nix

@@ -65,6 +65,7 @@
               nixpkgs.overlays = [
                 (import ./packages/widevine-firefox/overlay.nix)
                 (import ./packages/strawberry/overlay.nix)
+                (import ./packages/helium-browser/overlay.nix)
               ];
             }
             ./hosts/all.nix

home/all.nix

@@ -26,6 +26,7 @@
     libreoffice-qt-fresh
     spotdl
     rclone
+    helium-browser
 
     kde-rounded-corners
     kdePackages.partitionmanager

packages/helium-browser/overlay.nix

@@ -0,0 +1,3 @@
+final: prev: {
+  helium-browser = prev.callPackage (builtins.path { path = ./package.nix; }) { };
+}

packages/helium-browser/package.nix

@@ -0,0 +1,54 @@
+{
+  stdenv,
+  lib,
+  appimageTools,
+  fetchurl,
+  makeDesktopItem,
+  copyDesktopItems,
+}:
+let
+  pname = "helium-browser";
+  version = "0.6.4.1";
+
+  architectures = {
+    "x86_64-linux" = {
+      arch = "x86_64";
+      hash = lib.fakeHash;
+    };
+    "aarch64-linux" = {
+      arch = "arm64";
+      hash = "sha256-B63tvOtSRlMRJozvzC7lqG2LM0ZgLIq2G/AHABl+Qqg=";
+    };
+  };
+
+  src =
+    let
+      inherit (architectures.${stdenv.hostPlatform.system}) arch hash;
+    in
+    fetchurl {
+      url = "https://github.com/imputnet/helium-linux/releases/download/${version}/helium-${version}-${arch}.AppImage";
+      inherit hash;
+    };
+
+  appimageContents = appimageTools.extractType2 {
+    inherit pname version src;
+  };
+in
+appimageTools.wrapType2 {
+  inherit pname version src;
+  extraInstallCommands = ''
+    install -Dm444 ${appimageContents}/helium.desktop -t $out/share/applications
+    install -Dm444 ${appimageContents}/helium.png -t $out/share/pixmaps
+
+    substituteInPlace $out/share/applications/helium.desktop \
+      --replace-fail 'Exec=AppRun' 'Exec=${pname}'
+  '';
+  meta = {
+    description = "A private, respectful browser";
+    homepage = "https://github.com/imputnet/helium-linux";
+    downloadPage = "https://github.com/imputnet/helium-linux/releases";
+    license = lib.licenses.gpl3Only;
+    sourceProvenance = with lib.sourceTypes; [ binaryNativeCode ];
+    platforms = lib.attrNames architectures;
+  };
+}