Zettlr: init at 1.7.5

Fixes  #81516

pkgs/applications/misc/zettlr/default.nix

@@ -0,0 +1,38 @@
+{ appimageTools, lib, fetchurl, gtk3, gsettings-desktop-schemas}:
+
+# Based on https://gist.github.com/msteen/96cb7df66a359b827497c5269ccbbf94 and joplin-desktop nixpkgs.
+let
+  pname = "zettlr";
+  version = "1.7.5";
+  name = "${pname}-${version}";
+  src = fetchurl {
+    url = "https://github.com/Zettlr/Zettlr/releases/download/v${version}/Zettlr-${version}-x86_64.appimage";
+    sha256 = "040lx01ywdpla34d4abkmh51kchr11s17la6fk6yq77y8zb87xzi";
+  };
+  appimageContents = appimageTools.extractType2 {
+    inherit name src;
+  };
+in appimageTools.wrapType2 rec {
+  inherit name src;
+
+  profile = ''
+    export XDG_DATA_DIRS=${gsettings-desktop-schemas}/share/gsettings-schemas/${gsettings-desktop-schemas.name}:${gtk3}/share/gsettings-schemas/${gtk3.name}:$XDG_DATA_DIRS
+  '';
+
+  multiPkgs = null; # no 32bit needed
+  extraPkgs = appimageTools.defaultFhsEnvArgs.multiPkgs;
+  extraInstallCommands = ''
+    mv $out/bin/{${name},${pname}}
+    install -m 444 -D ${appimageContents}/zettlr.desktop $out/share/applications/zettlr.desktop
+    install -m 444 -D ${appimageContents}/zettlr.png $out/share/icons/hicolor/512x512/apps/zettlr.png
+    substituteInPlace $out/share/applications/zettlr.desktop --replace 'Exec=AppRun' 'Exec=${pname}'
+  '';
+
+  meta = with lib; {
+    description = "A markdown editor for writing academic texts and taking notes";
+    homepage = "https://www.zettlr.com";
+    platforms = [ "x86_64-linux" ];
+    license = licenses.gpl3;
+    maintainers = with maintainers; [ tfmoraes ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -27821,4 +27821,6 @@ in
   gpio-utils = callPackage ../os-specific/linux/kernel/gpio-utils.nix { };
 
   navidrome = callPackage ../servers/misc/navidrome {};
+
+  zettlr = callPackage ../applications/misc/zettlr { };
 }