feat: add PKGBUILD for Arch packaging (#163)

Co-authored-by: Kyle Gospodnetich <[email protected]>

pkg/PKGBUILD

@@ -0,0 +1,19 @@
+pkgname=yafti
+pkgver=0.8.0
+pkgrel=1
+pkgdesc="Yet Another First Time Installer"
+arch=(any)
+depends=(libadwaita gtk4 gobject-introspection python-{gbulb,pydantic,rich,typer,yaml})
+source=(https://github.com/ublue-os/yafti/archive/refs/tags/v$pkgver.zip)
+sha512sums=('a1491eb6348b9286c0ca5330e864d1e986efb80eb28dcf8869b97d048e12181ca858da69c61cdf3835c81f2e249580ea09946ff3308ffb2beff41d2486f4fddb')
+makedepends=(python-{build,installer,wheel,poetry})
+
+build() {
+    cd "$pkgname-$pkgver"
+    python -m build --wheel --no-isolation
+}
+
+package() {
+    cd "$pkgname-$pkgver"
+    python -m installer --destdir="$pkgdir" dist/*.whl
+}