diff --git a/implementations/main.cpp b/implementations/main.cpp
index dee97cf..0ee64c4 100644
--- a/implementations/main.cpp
+++ b/implementations/main.cpp
@@ -41,7 +41,7 @@ import Imsd;
 namespace {
 
 // ---- static config (env-overridable, same knobs as imsd.py) ---------------
-constexpr const char* Version = "0.3.0";
+constexpr const char* Version = "0.3.1";
 constexpr const char* BusName = "net.catcrafts.IMS1";
 constexpr const char* ObjPath = "/net/catcrafts/IMS1";
 constexpr const char* Iface = "net.catcrafts.IMS1";
diff --git a/packaging/aport/80-imsd.preset b/packaging/aport/80-imsd.preset
new file mode 100644
index 0000000..9ee121f
--- /dev/null
+++ b/packaging/aport/80-imsd.preset
@@ -0,0 +1 @@
+enable imsd.service
diff --git a/packaging/aport/APKBUILD b/packaging/aport/APKBUILD
new file mode 100644
index 0000000..7912d38
--- /dev/null
+++ b/packaging/aport/APKBUILD
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: GPL-3.0-only
+# SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
+# The canonical apk aport for imsd, owned by this repository since
+# 2026-09-01 (transferred from fp6-img, which now consumes this directory:
+# its build.sh copies packaging/aport/ into the pmaports overlay, pins
+# _commit to a reviewed commit, and generates the source tarball with
+# git-archive — the Forgejo instance serves no source archives).
+# packaging/APKBUILD{,.binary} are the older standalone variants.
+maintainer="Jorijn van der Graaf <jorijnvdgraaf@catcrafts.net>"
+pkgname=imsd
+pkgver=0.3.1
+pkgrel=0
+pkgdesc="Userspace IMS/VoLTE daemon for mainline Linux phones"
+url="https://forgejo.catcrafts.net/Catcrafts/imsd"
+# other arches: nothing wrong known, just never run there
+arch="aarch64 x86_64"
+license="GPL-3.0-only"
+# the media leg dlopen's the AMR-WB codecs; pw-record/pw-play drive PipeWire —
+# none of which abuild's .so auto-scan can see
+depends="modemmanager opencore-amr vo-amrwbenc pipewire-tools"
+# clang/libc++ C++26-modules build (upstream Makefile); llvm-runtimes ships
+# the libc++ std module sources the build precompiles
+makedepends="clang lld libc++-dev llvm-libunwind-dev llvm-runtimes glib-dev pkgconf"
+# the versioned provides both satisfies soc-qcom-modem's 81voltd dependency
+# and excludes the real package: 81voltd serves the modem firmware's own
+# ims-PDN requests, which races imsd for the PDN and flaps it (a new prefix
+# every ~2.5 min) — two IMS stacks cannot share one PDN. Installing imsd is
+# an explicit choice to hand the IMS PDN to userspace.
+provides="81voltd=$pkgver-r$pkgrel"
+# no OpenRC service yet: the unit's PDN-bring-up/env-file sequencing is only
+# tested under systemd; an initd is welcome once someone can verify one
+subpackages="$pkgname-systemd"
+# _commit is pinned by the consuming CI, which also drops the git-archive
+# tarball (prefix imsd/) next to this APKBUILD. The skel override hides
+# kde-telephony's modem daemon autostart for the account created at install —
+# imsd-dialerd owns those session D-Bus names instead.
+_commit="REPLACED_BY_CI"
+source="
+	imsd-$_commit.tar.gz
+	org.kde.modem.daemon.desktop
+	80-imsd.preset
+"
+builddir="$srcdir/$pkgname"
+
+build() {
+	make
+}
+
+check() {
+	make check
+}
+
+package() {
+	make install DESTDIR="$pkgdir"
+	install -Dm644 "$srcdir"/org.kde.modem.daemon.desktop \
+		"$pkgdir"/etc/skel/.config/autostart/org.kde.modem.daemon.desktop
+	# enabled by preset: the unit is a no-op until /etc/imsd.env exists, and
+	# VoLTE surviving reboots must not depend on a manual systemctl enable
+	install -Dm644 "$srcdir"/80-imsd.preset \
+		"$pkgdir"/usr/lib/systemd/system-preset/80-imsd.preset
+	mkdir -p "$pkgdir"/etc/systemd/system/multi-user.target.wants
+	ln -s /usr/lib/systemd/system/imsd.service \
+		"$pkgdir"/etc/systemd/system/multi-user.target.wants/imsd.service
+	# ...but only actually start once the carrier config exists, so
+	# unconfigured systems don't boot into a failing unit
+	mkdir -p "$pkgdir"/usr/lib/systemd/system/imsd.service.d
+	printf '[Unit]\nConditionPathExists=/etc/imsd.env\n' \
+		> "$pkgdir"/usr/lib/systemd/system/imsd.service.d/10-require-config.conf
+}
+
+systemd() {
+	install_if="$pkgname=$pkgver-r$pkgrel systemd"
+
+	amove usr/lib/systemd/system
+}
+
+sha512sums="
+REPLACED_BY_CI  imsd-REPLACED_BY_CI.tar.gz
+REPLACED_BY_CI  org.kde.modem.daemon.desktop
+REPLACED_BY_CI  80-imsd.preset
+"
diff --git a/packaging/aport/org.kde.modem.daemon.desktop b/packaging/aport/org.kde.modem.daemon.desktop
new file mode 100644
index 0000000..e1e3e17
--- /dev/null
+++ b/packaging/aport/org.kde.modem.daemon.desktop
@@ -0,0 +1,2 @@
+[Desktop Entry]
+Hidden=true