diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index be81f95..cb082b2 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -76,7 +76,7 @@ jobs:
         with:
           namcap: true
           updpkgsums : true
-          path : "packages/linux/nightly"
+          path : "packages/linux/nigthly"
           srcinfo: true
       
       - name: Upload Artifact
@@ -108,8 +108,14 @@ jobs:
             > [!NOTE]\n
             > The nightly prebuild is only avaiable for GNU/Linux and Windows.
             \n
+            > [!NOTE]\n
+            > For NixOS/Nixpkg you need to build it yourself by downloading the source files 
+            and then run `./nix-helper install`
+            \n
             Experimental Build (Nightly) generated by GitHub Action. The nighy build are experimental nuitka compilation from the nighly branch.
-            Package for GNU/Linux and Installer for Windows is coming late. Now includes installers."
+            Package for GNU/Linux and Installer for Windows is coming late. 
+            \n
+            Now includes installers."
           files: |
             ./artifacts/****.exe
             ./artifacts/****.zip
diff --git a/PKGBUILD b/PKGBUILD
deleted file mode 100644
index 314e32d..0000000
--- a/PKGBUILD
+++ /dev/null
@@ -1,62 +0,0 @@
-# Maintainer: Xgui4
-pkgname=lce-qt-launcher-git
-pkgver=nightly
-pkgrel=2
-pkgdesc="A custom Minecraft LCE Launcher written in Python and Qt with GNU/Linux support in mind. (Nigthly/Git Build)"
-arch=('any')
-url="https://github.com/xgui4/LCE-Qt-Launcher"
-license=('GPL-3.0-or-later')
-depends=(
-    'python' 
-    'pyside6' 
-    'python-requests' 
-    'python-platformdirs'
-    'python-vdf'
-    'python-rich'
-) 
-makedepends=(
-    'git'     
-    'bash' 
-    'curl'             
-    'python-build' 
-    'python-installer' 
-    'python-hatchling' 
-    'python-wheel'
-    'qt6-tools'
-)
-optdepends=(
-    'wine: Allow to launch non-Linux-native Minecraft LCE ports' 
-    'steam: Allow for Steam integration'
-)
-
-provides=("${pkgname%-git}" "${pkgname%-nightly}" "${pkgname%}")
-conflicts=("${pkgname%-dev}" "${pkgname%-stable}" "${pkgname%}")
-source=("${pkgname}::git+${url}.git#branch=nightly")
-sha256sums=('SKIP')
-
-pkgver() {
-  cd "$pkgname"
-  # cutting off 'foo-' prefix that presents in the git tag
-  git describe --always --long --tags | sed 's/^foo-//;s/\([^-]*-g\)/r\1/;s/-/./g'
-}
-
-build() {
-    cd "$pkgname"
-    rm -rf dist/ build/
-    /usr/bin/python -m build --wheel --no-isolation
-}
-
-package() {
-    cd "$pkgname"
-    /usr/bin/python -m installer --destdir="$pkgdir" dist/*.whl
-    install -d "$pkgdir/opt/lce_qt_launcher"
-    cp -r data assets "$pkgdir"
-    install -Dm644 "data/lce_qt_launcher.ini" "$pkgdir/etc/lce_qt_launcher.ini"
-    install -Dm644 "packages/io.github.xgui4.lce_qt_launcher.desktop" "$pkgdir/usr/share/applications/io.github.xgui4.lce_qt_launcher.desktop"
-    install -Dm644 "packages/lce_inst-mime.xml" "$pkgdir/usr/share/mime/packages/io.github.xgui4.lce_qt_launcher.gtk.metainfo.xml"
-    install -Dm644 "license.md" -t "$pkgdir/usr/share/licenses/$pkgname/"
-    install -Dm644 "readme.md" "code-of-conduct.md" -t "$pkgdir/usr/share/doc/$pkgname/"
-    install -Dm644 "packages/io.github.xgui4.lce_qt_launcher.metainfo.xml" "$pkgdir/usr/share/metainfo/io.github.xgui4.lce_qt_launcher.gtk.metainfo.xml"
-    install -Dm644 "assets/io.github.xgui4.lce_qt_launcher.png" "$pkgdir/usr/share/icons/hicolor/128x128/apps/io.github.xgui4.lce_qt_launcher.png"
-    install -Dm644 "assets/lce_inst.png" "$pkgdir/usr/share/icons/hicolor/128x128/mimetypes/application-x-lce_inst.png"
-}
diff --git a/assets/lce_inst.ico b/assets/lce_inst.ico
new file mode 100644
index 0000000..058ab91
Binary files /dev/null and b/assets/lce_inst.ico differ
diff --git a/packages/linux/dev/PKGBUILD b/packages/linux/dev/PKGBUILD
index 96f77da..144ac26 100644
--- a/packages/linux/dev/PKGBUILD
+++ b/packages/linux/dev/PKGBUILD
@@ -1,5 +1,5 @@
 # Maintainer: Xgui4
-pkgname=lce-qt-launcher-beta
+pkgname=lce-qt-launcher-de
 pkgver=049bcc6
 pkgrel=1
 pkgdesc="A custom Minecraft LCE Launcher written in Python and Qt with GNU/Linux support in mind. (Beta Build)"
@@ -30,7 +30,8 @@ optdepends=(
     'steamtinkerlaunch: For better Stream integration on Linux'
 )
 
-provides=("${pkgname%-dev}" "${pkgname%-beta}" "${pkgname%}")
+replace=("${pkgname%-beta}")
+provides=("${pkgname%-dev}" "${pkgname%}")
 conflicts=("${pkgname%-nightly}" "${pkgname%-dev}" "${pkgname%-beta}" "${pkgname%}")
 source=("${pkgname}::git+${url}.git#branch=beta")
 sha256sums=('SKIP')
diff --git a/packages/linux/nigthly/PKGBUILD b/packages/linux/nigthly/PKGBUILD
index 7693f41..4732c2f 100644
--- a/packages/linux/nigthly/PKGBUILD
+++ b/packages/linux/nigthly/PKGBUILD
@@ -29,7 +29,7 @@ optdepends=(
     'steam: Allow for Steam integration'
 )
 
-provides=("${pkgname%-git}" "${pkgname%-nightly}" "${pkgname%}")
+provides=("${pkgname%-nightly}" "${pkgname%}")
 conflicts=("${pkgname%-dev}" "${pkgname%-stable}" "${pkgname%}")
 source=("${pkgname}::git+${url}.git#branch=nightly")
 sha256sums=('SKIP')
diff --git a/packages/windows/windows-setup-nigthly-preview.iss b/packages/windows/windows-setup-nigthly-preview.iss
index bfe8a25..666edd2 100644
--- a/packages/windows/windows-setup-nigthly-preview.iss
+++ b/packages/windows/windows-setup-nigthly-preview.iss
@@ -50,12 +50,13 @@ Name: "french"; MessagesFile: "compiler:Languages\French.isl"
 [Files]
 ; NOTE: Use the "issigverify" flag or the "Hash" parameter to verify downloads
 Source: "https://github.com/xgui4/LCE-Qt-Launcher/releases/download/nightly/LCE-Qt-Launcher-Windows.zip"; DestDir: "{app}"; DestName: "LCE-Qt-Launcher-Windows.zip"; ExternalSize: "186646528"; Flags: ignoreversion external download extractarchive recursesubdirs createallsubdirs
+Source: "../../assets/lce_inst.ico"; DestDir: "{app}"; Flags: ignoreversion
 ; NOTE: Don't use "Flags: ignoreversion" on any shared system files
 
 [Registry]
 Root: HKA; Subkey: "Software\Classes\{#MyAppAssocExt}\OpenWithProgids"; ValueType: string; ValueName: "{#MyAppAssocKey}"; ValueData: ""; Flags: uninsdeletevalue
 Root: HKA; Subkey: "Software\Classes\{#MyAppAssocKey}"; ValueType: string; ValueName: ""; ValueData: "{#MyAppAssocName}"; Flags: uninsdeletekey
-Root: HKA; Subkey: "Software\Classes\{#MyAppAssocKey}\DefaultIcon"; ValueType: string; ValueName: ""; ValueData: "{app}\{#MyAppExeName},0"
+Root: HKA; Subkey: "Software\Classes\{#MyAppAssocKey}\DefaultIcon"; ValueType: string; ValueName: ""; ValueData: "{app}\../../assets/lce_inst.ico"
 Root: HKA; Subkey: "Software\Classes\{#MyAppAssocKey}\shell\open\command"; ValueType: string; ValueName: ""; ValueData: """{app}\{#MyAppExeName}"" ""%1"""
 
 [Icons]
diff --git a/packages/windows/windows-setup-nigthly.iss b/packages/windows/windows-setup-nigthly.iss
index d776b84..08e8aa7 100644
--- a/packages/windows/windows-setup-nigthly.iss
+++ b/packages/windows/windows-setup-nigthly.iss
@@ -55,12 +55,13 @@ Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{
 [Files]
 ; NOTE: Use the "issigverify" flag or the "Hash" parameter to verify downloads
 Source: "https://github.com/xgui4/LCE-Qt-Launcher/releases/download/nightly/LCE-Qt-Launcher-Windows.zip"; DestDir: "{app}"; DestName: "LCE-Qt-Launcher-Windows.zip"; ExternalSize: "186646528"; Flags: ignoreversion external download extractarchive recursesubdirs createallsubdirs
+Source: "../../assets/lce_inst.ico"; DestDir: "{app}"; Flags: ignoreversion
 ; NOTE: Don't use "Flags: ignoreversion" on any shared system files
 
 [Registry]
 Root: HKA; Subkey: "Software\Classes\{#MyAppAssocExt}\OpenWithProgids"; ValueType: string; ValueName: "{#MyAppAssocKey}"; ValueData: ""; Flags: uninsdeletevalue
 Root: HKA; Subkey: "Software\Classes\{#MyAppAssocKey}"; ValueType: string; ValueName: ""; ValueData: "{#MyAppAssocName}"; Flags: uninsdeletekey
-Root: HKA; Subkey: "Software\Classes\{#MyAppAssocKey}\DefaultIcon"; ValueType: string; ValueName: ""; ValueData: "{app}\{#MyAppExeName},0"
+Root: HKA; Subkey: "Software\Classes\{#MyAppAssocKey}\DefaultIcon"; ValueType: string; ValueName: ""; ValueData: "{app}\../../assets/lce_inst.ico"
 Root: HKA; Subkey: "Software\Classes\{#MyAppAssocKey}\shell\open\command"; ValueType: string; ValueName: ""; ValueData: """{app}\{#MyAppExeName}"" ""%1"""
 
 [Icons]
diff --git a/pyproject.toml b/pyproject.toml
index 342cf0b..adddd67 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,8 +7,8 @@ build-backend = "hatchling.build"
 
 [project]
 name = "LCE-Qt-Launcher"
-version = "0.0.2b0"
-description = "This is a custom Free/Libre Minecraft LCE Launcher written in Python and Qt. (Beta Build)"
+version = "26.5.9a0"
+description = "This is a custom Free/Libre Minecraft LCE Launcher written in Python and Qt. (Nightly Build)"
 requires-python = ">3.10, <3.13"
 license = "GPL-3.0-or-later"
 readme = "readme.md"
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..25791e4
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,96 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+let
+  myPython = pkgs.python3.withPackages (ps: with ps; [
+    pyside6
+    requests
+    shiboken6
+    platformdirs
+    rich
+  ]);
+
+  # Create standalone wrapper scripts
+  pyside-uic = pkgs.writeShellScriptBin "pyside6-uic" ''
+    exec ${pkgs.qt6.qtbase}/libexec/uic -g python "$@"
+  '';
+  
+  pyside-rcc = pkgs.writeShellScriptBin "pyside6-rcc" ''
+    exec ${pkgs.qt6.qtbase}/libexec/rcc -g python "$@"
+  '';
+
+in
+pkgs.mkShell {
+  pname = "lce-qt-launcher";
+  version = "0.2026.5.9";
+  format = "pyproject";
+
+  src = ./.;
+  
+  buildInputs = with pkgs; [
+    pyside-uic
+    pyside-rcc
+    monocraft 
+    qt6.qtbase
+    qt6.qtwayland
+    libGL
+  ];
+
+   postPatch = ''
+    patchShebangs scripts/
+    chmod +x scripts/*.sh
+    substituteInPlace scripts/build.sh \
+      --replace-fail "/usr/lib/qt6/rcc" "${pkgs.qt6.qtbase}/libexec/rcc" \
+      --replace-fail "/usr/lib/qt6/uic" "${pkgs.qt6.qtbase}/libexec/uic"
+
+    # Remove the build-time dependencies Nix doesn't need 
+    # (this prevents Hatchling from complaining they are missing)
+    sed -i '/"hatch<=/d' pyproject.toml
+    sed -i '/"Nuitka<=/d' pyproject.toml
+    sed -i '/"patchelf<=/d' pyproject.toml
+  '';
+
+  # Manual installation of non-Python assets (Desktop files, icons, etc.)
+  postInstall = ''
+    # Desktop Entry & Mime
+    install -Dm644 "packages/io.github.xgui4.lce_qt_launcher.desktop" "$out/share/applications/io.github.xgui4.lce_qt_launcher.desktop"
+    install -Dm644 "packages/lce_inst-mime.xml" "$out/share/mime/packages/io.github.xgui4.lce_qt_launcher.xml"
+    install -Dm644 "packages/io.github.xgui4.lce_qt_launcher.metainfo.xml" "$out/share/metainfo/io.github.xgui4.lce_qt_launcher.metainfo.xml"
+
+    # Icons
+    install -Dm644 "assets/io.github.xgui4.lce_qt_launcher.png" "$out/share/icons/hicolor/128x128/apps/io.github.xgui4.lce_qt_launcher.png"
+    install -Dm644 "assets/lce_inst.png" "$out/share/icons/hicolor/128x128/mimetypes/application-x-lce_inst.png"
+
+    # Data/Assets (Mirroring your /opt logic into Nix share)
+    mkdir -p "$out/share/${pname}"
+    cp -r data assets "$out/share/${pname}/"
+
+    # Docs
+    install -Dm644 "license.md" -t "$out/share/licenses/${pname}/"
+    install -Dm644 "readme.md" "code-of-conduct.md" -t "$out/share/doc/${pname}/"
+  '';
+
+  dontCheckRuntimeDeps = true;
+  dontWrapQtApps = true;
+  preFixup = ''
+    makeWrapperArgs+=("''${qtWrapperArgs[@]}")
+  '';
+
+  shellHook = ''
+    # Ensure our wrapped Python and tools are first in PATH
+    export PATH="${myPython}/bin:${pyside-uic}/bin:${pyside-rcc}/bin:$PATH"
+    
+    # Reset PYTHONPATH to only include your source
+    export PYTHONPATH="$(pwd)/src"
+
+    # Tell UV which Python to use
+    export UV_PYTHON="${myPython}/bin/python3"
+    
+    # NixOS Graphics & Qt Fixes
+    export LD_LIBRARY_PATH="${pkgs.lib.makeLibraryPath [ pkgs.libGL pkgs.stdenv.cc.cc ]}:$LD_LIBRARY_PATH"
+    export QT_PLUGIN_PATH="${pkgs.qt6.qtbase}/${pkgs.qt6.qtbase.qtPluginPrefix}"
+    export QT_QPA_PLATFORM_PLUGIN_PATH="${pkgs.qt6.qtbase}/lib/qt-6/plugins/platforms"
+
+    echo "Environment Reset: Python is $(which python3)"
+    echo "pyside6-uic is now $(which pyside6-uic) and outputs Python code."
+  '';
+}
\ No newline at end of file
diff --git a/src/lce_qt_launcher/__init__.py b/src/lce_qt_launcher/__init__.py
index 2e7ca1e..80b79fd 100644
--- a/src/lce_qt_launcher/__init__.py
+++ b/src/lce_qt_launcher/__init__.py
@@ -1,7 +1,7 @@
 from enum import StrEnum
 
 FALLBACK_APP_NAME = "LCE Qt Launcher"
-FALLBACK_VERSION_NUMBER  = "0.0.2b1"
+FALLBACK_VERSION_NUMBER  = "2026.5.9b0"
 FALLBACK_LICENSE = "GPLv3"
 FALLBACK_LICENSE_LINK = "https://www.gnu.org/licenses/gpl-3.0"
 FALLBACK_GIT_REPO_URL = "https://github.com/xgui4/LCE-QT-Launcher"
diff --git a/uv.lock b/uv.lock
index 01393dc..507852a 100644
--- a/uv.lock
+++ b/uv.lock
@@ -465,7 +465,7 @@ wheels = [
 
 [[package]]
 name = "lce-qt-launcher"
-version = "0.0.2b0"
+version = "26.5.9a0"
 source = { editable = "." }
 dependencies = [
     { name = "hatch" },