main/postmarketos-ui-niri: configure greetd.service to use niri's wlgreetd config

Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/7557>

main/postmarketos-ui-niri/APKBUILD

@@ -1,14 +1,13 @@
 # Reference: https://postmarketos.org/uipkg
 # Maintainer: Aster Boese <asterboese@mailbox.org>
 pkgname=postmarketos-ui-niri
-pkgver=1
-pkgrel=1
+pkgver=2
+pkgrel=0
 pkgdesc="(Wayland) A scrollable-tiling compositor (DOES NOT RUN WITHOUT HW ACCELERATION!)"
 url="https://postmarketos.org"
 # Blocked by niri
 arch="x86_64 aarch64 ppc64le"
 license="GPL-3.0-or-later"
-subpackages="$pkgname-openrc"
 depends="
 	bluez
 	dnsmasq
@@ -32,9 +31,11 @@ _pmb_recommends="
 	xwayland
 	"
 _pmb_groups="seat"
+subpackages="$pkgname-openrc $pkgname-systemd"
 source="
 	niri-greet.kdl
 	wlgreet.toml
+	greetd-wlgreet.conf
 	"
 # No tests
 options="!check pmb:drm pmb:systemd"
@@ -47,6 +48,10 @@ package() {
 	# greetd configuration to start niri
 	install -Dm644 "$srcdir"/wlgreet.toml \
 		"$pkgdir"/etc/greetd/wlgreet.toml
+
+	# configure greetd.service to use our greetd config
+	install -Dm644 "$srcdir"/greetd-wlgreet.conf \
+		"$pkgdir"/usr/lib/systemd/system/greetd.service.d/override.conf
 }
 
 openrc() {
@@ -66,4 +71,5 @@ openrc() {
 sha512sums="
 d679d3900904c89381b923a2ca4b92b65b300162d9ca581a2b11c37b34405c89b0b530821282c94067a3ff351642842fd7cee17d3c10c4357663471f57e1e3f8  niri-greet.kdl
 49f9c81c2ab7edc5127818de27c5a4fa74cd7fae403afe5bac641ac44132f8d99f0d78e09d2c85d676f30001b201f0ad1b1160becef0b3d0788173f02f9562fa  wlgreet.toml
+9c032c47938c0b3e3852e62d94bee0592b3c53ebc9713419fad725cc43b77f707487a5a5a677e92f6ce156a70fd55147ab239148e55aeb188d9b9b8aaec63760  greetd-wlgreet.conf
 "

main/postmarketos-ui-niri/greetd-wlgreet.conf

@@ -0,0 +1,4 @@
+# Override the ExecStart line by the configuration file
+[Service]
+ExecStart=
+ExecStart=greetd -c /etc/greetd/wlgreet.toml