diff --git a/Dockerfile.debbuild b/Dockerfile.debbuild
index 8d185b1..35ffc7b 100644
--- a/Dockerfile.debbuild
+++ b/Dockerfile.debbuild
@@ -61,6 +61,23 @@ rsync -a --delete \
   "${SRC}/" "${WORK}/"
 
 cd "${WORK}"
+
+# This project's pyproject.toml uses the PEP 621 [project] table, which needs
+# poetry-core >= 2.0.  Debian bookworm and Ubuntu jammy/noble ship an older
+# poetry-core that cannot parse it.  On those, swap in the legacy Poetry 1.x
+# formatted metadata (kept in sync at pyproject.poetry1.toml) for the build.
+# trixie and newer ship poetry-core 2.x and keep the PEP 621 file.
+if [ -f pyproject.poetry1.toml ]; then
+  core_ver="$(python3 -c 'import poetry.core as c; print(c.__version__)' 2>/dev/null || echo 0)"
+  core_major="${core_ver%%.*}"
+  if [ "${core_major:-0}" -lt 2 ]; then
+    echo "poetry-core ${core_ver} < 2.0: using legacy pyproject.poetry1.toml"
+    cp pyproject.poetry1.toml pyproject.toml
+  else
+    echo "poetry-core ${core_ver} >= 2.0: using PEP 621 pyproject.toml"
+  fi
+fi
+
 if [ -n "${SUITE:-}" ]; then
   export DEBEMAIL="mig@mig5.net"
   export DEBFULLNAME="Miguel Jacq"
diff --git a/README.md b/README.md
index 8423cb7..2905cfe 100644
--- a/README.md
+++ b/README.md
@@ -281,11 +281,6 @@ Clone the repo and then run inside the clone:
 poetry install
 ```
 
-### AppImage
-
-Download the AppImage from the Releases page, make it executable, and put it on
-your `$PATH`.
-
 ## Full usage info
 
 ```text
diff --git a/release.sh b/release.sh
index 2cdb868..874e50e 100755
--- a/release.sh
+++ b/release.sh
@@ -7,11 +7,6 @@ filedust -y .
 
 # Publish to Pypi
 poetry build
-poetry publish
-
-# Make AppImage
-poetry run pyproject-appimage
-mv JinjaTurtle.AppImage dist/
 
 # Sign packages
 for file in `ls -1 dist/`; do qubes-gpg-client --batch  --armor --detach-sign dist/$file > dist/$file.asc; done
@@ -51,8 +46,8 @@ REPO_ROOT="${HOME}/git/repo_rpm"
 REMOTE="ashpool.mig5.net:/opt/repo_rpm"
 
 DISTS=(
+  fedora:44
   fedora:43
-  fedora:42
 )
 
 for dist in ${DISTS[@]}; do
@@ -87,6 +82,9 @@ for dist in ${DISTS[@]}; do
   qubes-gpg-client --local-user "$KEYID" --detach-sign --armor "$RPM_REPO/repodata/repomd.xml" > "$RPM_REPO/repodata/repomd.xml.asc"
 done
 
+# If we got this far, we can publish to PyPI
+poetry publish
+
 echo "==> Syncing repo to server..."
 rsync -aHPvz --exclude=.git --delete "$REPO_ROOT/" "$REMOTE/"