[probonopd]

Repository: https://github.com/KNXBench-Labs/KNXBench

KNXBench: A free, open-source, cross-platform KNX engineering tool born from a Linux user's refusal to accept Windows dependency. Powered by AI, questionable life choices, billions of tokens, and enough caffeine to automate a small country.

• Stars: 5
• Release with the AppImage: v0.1.0-alpha.19 (2026-11-01T17:13:33Z)
• AppImage asset: KNXBench_0.1.0-alpha.19_amd64.AppImage
• License: AGPL-3.0

Found by .github/workflows/discover-apps.yml, which looks for GitHub
repositories that publish AppImages but are not in the catalog yet. This
entry was not tested by a human; please review it before merging.

[github-actions]

❌ Test failure

@KNXBench-Labs: this pull request adds the AppImage from your GitHub repository to the AppImage catalog; the test reports the following. Could you have a look?

Tested:

• KNXBench_0.1.0-alpha.19_amd64.AppImage from release v0.1.0-alpha.19 (marked as a pre-release)

Compatibility: not self-contained: uses the C library of the system; references glibc 2.43

• A file inside the AppImage is not executable. Please check the file permissions before packaging the AppImage.
• AppRun.wrapped (or the launcher it starts) could not be executed. This typically happens with Tauri and linuxdeploy builds when a cached launcher was packaged with mode 0770 and is owned by root, so that it is not executable for the test user. Please make the AppDir readable and executable for everyone before packaging, e.g. chmod -R a+rX AppDir (and chmod a+x on AppRun and AppRun.wrapped) before running appimagetool.
• The application quit or crashed right after starting; the error below usually shows why. Note that the test runs the application without network access, on purpose, and that this is a requirement for the catalog: an AppImage must start without network (users are offline too). If the application needs a server, a login or an update check to start, please make it show its window (or at least a message) first and connect afterwards, and handle a failed connection instead of exiting.

First error in the log:

/run/firejail/appimage/AppRun: line 12: /run/firejail/appimage/AppRun.wrapped: Permission denied

The application showed no window, but may be a system tray application (usr/lib/girepository-1.0/AyatanaAppIndicator3-0.1.typelib: app_indicator_new); running it again with a system tray
/run/firejail/appimage/AppRun: line 12: /run/firejail/appimage/AppRun.wrapped: Permission denied
No icon appeared in the system tray either
ERROR: The application exited within 11 seconds instead of showing a window

What next: once the AppImage is fixed (e.g. in a new release), comment /retest here to test it again. If it should not be in the catalog after all, close this pull request; an app that is already in the catalog can be removed by a maintainer with /remove.

Commit 3d6d076. Full log

[KNXBench-Labs]

/retest

[github-actions]

❌ Test failure

Tested:

• KNXBench_0.1.0-alpha.20_amd64.AppImage from release v0.1.0-alpha.20 (marked as a pre-release)

Compatibility: not self-contained: uses the C library of the system; references glibc 2.39

• The AppImage needs a newer C library (glibc, or the C++ library libstdc++) than the test system has; the error names the version that is missing (e.g. GLIBC_2.38). The test runs on the oldest Ubuntu LTS release that is still in standard support (see https://ubuntu.com/about/release-cycle), because an AppImage is meant to run on any current Linux distribution, including older ones, and glibc can only be as old as the system the AppImage was built on: a program built on a newer system links against symbols that older systems do not have. The fix is to build on the oldest still-supported LTS release (in GitHub Actions, the oldest ubuntu-* runner still offered, or a container of that release), not on the newest system. If the program itself needs a newer compiler, build in a container of the old release with a newer toolchain (e.g. the toolchain PPAs), statically link what needs it, or bundle the C library together with its dynamic loader (ld-linux) in the AppImage: then the host's glibc does not matter at all (the test reports X-AppImage-Libc=bundled). See https://docs.appimage.org/reference/best-practices.html#binaries-compiled-on-old-enough-base-system
• The application quit or crashed right after starting; the error below usually shows why. Note that the test runs the application without network access, on purpose, and that this is a requirement for the catalog: an AppImage must start without network (users are offline too). If the application needs a server, a login or an update check to start, please make it show its window (or at least a message) first and connect afterwards, and handle a failed connection instead of exiting.

First error in the log:

knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.39' not found (required by knx-desktop)
knx-desktop: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libgdk-3.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libgdk-3.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libcairo.so.2)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libcairo.so.2)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libglib-2.0.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libdbus-1.so.3)
knx-desktop: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libwebkit2gtk-4.1.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libwebkit2gtk-4.1.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libgtk-3.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libgtk-3.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libsoup-3.0.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libgio-2.0.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libjavascriptcoregtk-4.1.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libjavascriptcoregtk-4.1.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libpango-1.0.so.0)

What next: once the AppImage is fixed (e.g. in a new release), comment /retest here to test it again. If it should not be in the catalog after all, close this pull request; an app that is already in the catalog can be removed by a maintainer with /remove.

Commit 3d6d076. Full log

[KNXBench-Labs]

Thanks for the thorough test and the very helpful report!

Quick status from our side: the permission problem from the first run is fixed in v0.1.0-alpha.20 (both AppRun and AppRun.wrapped are now 0755 and the AppDir is world-readable), and the retest no longer trips over it.

The remaining failure is a deliberate choice on our side, though: KNXBench builds its AppImage on Ubuntu 24.04 and needs glibc 2.39, while the catalog test runs on Ubuntu 22.04 (glibc 2.35). We have decided to stay on 24.04 rather than move the build back to 22.04, so this AppImage does not currently meet the catalog's requirement, and we won't ask for an exception.

So from our side this pull request can be closed; please don't keep it open on our account. If the catalog's baseline moves to 24.04 at some point (22.04 leaves standard support in 2027), we'd be happy to try again with a fresh /retest or a new submission. Until then, our AppImages stay available from our GitHub releases.

Thanks again for running the catalog and for the friendly robot doing the testing 🙂

[github-actions]

❌ Test failure

Tested:

• KNXBench_0.1.0-alpha.20_amd64.AppImage from release v0.1.0-alpha.20 (marked as a pre-release)

Compatibility: not self-contained: uses the C library of the system; references glibc 2.39

• The AppImage needs a newer C library (glibc, or the C++ library libstdc++) than the test system has; the error names the version that is missing (e.g. GLIBC_2.38). The test runs on the oldest Ubuntu LTS release that is still in standard support (see https://ubuntu.com/about/release-cycle), because an AppImage is meant to run on any current Linux distribution, including older ones, and glibc can only be as old as the system the AppImage was built on: a program built on a newer system links against symbols that older systems do not have. The fix is to build on the oldest still-supported LTS release (in GitHub Actions, the oldest ubuntu-* runner still offered, or a container of that release), not on the newest system. If the program itself needs a newer compiler, build in a container of the old release with a newer toolchain (e.g. the toolchain PPAs), statically link what needs it, or bundle the C library together with its dynamic loader (ld-linux) in the AppImage: then the host's glibc does not matter at all (the test reports X-AppImage-Libc=bundled). See https://docs.appimage.org/reference/best-practices.html#binaries-compiled-on-old-enough-base-system
• The application quit or crashed right after starting; the error below usually shows why. Note that the test runs the application without network access, on purpose, and that this is a requirement for the catalog: an AppImage must start without network (users are offline too). If the application needs a server, a login or an update check to start, please make it show its window (or at least a message) first and connect afterwards, and handle a failed connection instead of exiting.

First error in the log:

knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.39' not found (required by knx-desktop)
knx-desktop: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libgdk-3.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libgdk-3.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libcairo.so.2)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libcairo.so.2)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libglib-2.0.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libdbus-1.so.3)
knx-desktop: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libwebkit2gtk-4.1.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libwebkit2gtk-4.1.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libgtk-3.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libgtk-3.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libsoup-3.0.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libgio-2.0.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libjavascriptcoregtk-4.1.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libjavascriptcoregtk-4.1.so.0)
knx-desktop: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by /run/firejail/appimage/usr/lib/libpango-1.0.so.0)

What next: once the AppImage is fixed (e.g. in a new release), comment /retest here to test it again. If it should not be in the catalog after all, close this pull request; an app that is already in the catalog can be removed by a maintainer with /remove.

Commit 3d6d076. Full log

[probonopd]

/remove

[github-actions]

Labeled opt-out: auto-discovery will not propose this app again.