Bug report: App doesn't launch properly on NixOS

[adam-tj]

This happens when running the latest AppImage on NixOS Unstable using Plasma 6 on Wayland. The package in the Nix repo is also broken but in a different way. The version from Flathub works correctly. Version 1.4 also works as it should. I use an AMD gpu if that matters.

adam@desktop ~/Downloads $ appimage-run TrguiNG_1.5.1_amd64.AppImage
TrguiNG_1.5.1_amd64.AppImage installed in /home/adam/.cache/appimage-run/ed1b8e3841c7d9da2c6d7dda4521e869ffbb45acb6e2c40563369cad4a8baac9
Gtk-Message: 01:55:24.006: Failed to load module "colorreload-gtk-module"
Gtk-Message: 01:55:24.006: Failed to load module "window-decorations-gtk-module"
Gtk-Message: 01:55:24.006: Failed to load module "appmenu-gtk-module"
Could not create default EGL display: EGL_BAD_PARAMETER. Aborting...
connection error: connection closed before message completed

Crash report from Plasma 6:

           PID: 323439 (WebKitWebProces)
           UID: 1000 (adam)
           GID: 100 (users)
        Signal: 6 (ABRT)
     Timestamp: Sat 2026-06-13 02:03:55 CEST (15s ago)
  Command Line: ././/lib/x86_64-linux-gnu/webkit2gtk-4.1/WebKitWebProcess 4 26 28
    Executable: /home/adam/.cache/appimage-run/ed1b8e3841c7d9da2c6d7dda4521e869ffbb45acb6e2c40563369cad4a8baac9/usr/lib/x86_64-linux-gnu/webkit2gtk-4.1/WebKitWebProcess
 Control Group: /user.slice/user-1000.slice/user@1000.service/app.slice/app-org.kde.konsole-41140.scope/tab(320109).scope
          Unit: user@1000.service
     User Unit: app-org.kde.konsole-41140.scope
         Slice: user-1000.slice
     Owner UID: 1000 (adam)
       Boot ID: d5c85661dd5c4eeeab9b533f6c8d44b0
    Machine ID: 17f2358ea49748a9aa155a5318f142eb
      Hostname: desktop
       Storage: /var/lib/systemd/coredump/core.WebKitWebProces.1000.d5c85661dd5c4eeeab9b533f6c8d44b0.323439.1781309035000000.zst (present)
  Size on Disk: 2.1M
       Message: Process 323439 (WebKitWebProces) of user 1000 dumped core.
                
                Module /nix/store/hxf122lzgpiba2qrglmap676383d17y2-e2fsprogs-1.47.3/lib/libcom_err.so.2.1 without build-id.
                Module /nix/store/7gwd2kvkx1s369cwiv5z4x2xjxbppav6-libx11-1.8.13/lib/libX11-xcb.so.1.0.0 without build-id.
                Module /nix/store/dpi7sgi4dmnddwjwdi57d8x06sx49vkn-libglvnd-1.7.0/lib/libEGL.so.1.1.0 without build-id.
                Module /nix/store/dpi7sgi4dmnddwjwdi57d8x06sx49vkn-libglvnd-1.7.0/lib/libGL.so.1.7.0 without build-id.
                Module /nix/store/jj27mc075js673vkgd8fy6xxr34n8n9i-libxcb-1.17.0/lib/libxcb.so.1.1.0 without build-id.
                Module /nix/store/srn27ymz85mv7nbwkv1lyhi7g91cvyh7-fribidi-1.0.16/lib/libfribidi.so.0.4.0 without build-id.
                Module /nix/store/8fbsxg75a01nm3ivxg8kl3zxd7wx34p2-libdrm-2.4.133/lib/libdrm.so.2.133.0 without build-id.
                Module /nix/store/7gwd2kvkx1s369cwiv5z4x2xjxbppav6-libx11-1.8.13/lib/libX11.so.6.4.0 without build-id.
                Module /nix/store/chqq8mpmpyfi9kgsngya71akv5xicn03-gcc-15.2.0-lib/lib/libstdc++.so.6.0.34 without build-id.
                Module /nix/store/vqdj7h2d94f494in371j7jwz8akymryi-mesa-libgbm-26.0.3/lib/libgbm.so.1.0.0 without build-id.
                Module /nix/store/x7qp6h5bdyjf0d6c5s65h6gn24lgmhr1-libgpg-error-1.59/lib/libgpg-error.so.0.41.2 without build-id.
                Module /nix/store/xyikkpwkyxx6syba3kfrr0h67ig5hwmn-gcc-15.2.0-libgcc/lib/libgcc_s.so.1 without build-id.
                Module /nix/store/61a1nwx3w6rqyaisj5rn1sal1981apm7-zlib-1.3.2/lib/libz.so.1.3.2 without build-id.
                Module /nix/store/bd9nkv00cbnj19zc61rlqyrjvnlmq73j-harfbuzz-13.2.1/lib/libharfbuzz.so.0.61321.0 without build-id.
                Module /nix/store/d8927sznk6qnqln6hl9p4d42h8pq49vg-expat-2.8.0/lib/libexpat.so.1.12.0 without build-id.
                Module /nix/store/48krja1dqwpsa0i3yw9v47hbcxn7agrh-fontconfig-2.17.1-lib/lib/libfontconfig.so.1.16.1 without build-id.
                Module /nix/store/a9n3345hndg2z6iwbi7m59gvkwcd264j-freetype-2.14.2/lib/libfreetype.so.6.20.5 without build-id.
                Module libudev.so.1 from deb systemd-255.4-1ubuntu8.11.amd64
                Module libGLdispatch.so.0 without build-id.
                Module libGLX.so.0 without build-id.
                Module libzstd.so.1 from deb libzstd-1.5.5+dfsg2-2build1.1.amd64
                Module libbz2.so.1 without build-id.
                Module libsystemd.so.0 from deb systemd-255.4-1ubuntu8.11.amd64
                Module libatomic.so.1 from deb gcc-14-14.2.0-4ubuntu2~24.04.amd64
                Stack trace of thread 323439:
                #0  0x00007db36189fdcc __pthread_kill_implementation (/nix/store/57iz36553175g3178pvxjij8z5rcsd4n-glibc-2.42-61/lib/libc.so.6 + 0x9fdcc)
                #1  0x00007db36184265e raise (/nix/store/57iz36553175g3178pvxjij8z5rcsd4n-glibc-2.42-61/lib/libc.so.6 + 0x4265e)
                #2  0x00007db361829350 abort (/nix/store/57iz36553175g3178pvxjij8z5rcsd4n-glibc-2.42-61/lib/libc.so.6 + 0x29350)
                #3  0x00007db36a7c82cc n/a (libwebkit2gtk-4.1.so.0 + 0x2fc82cc)
                #4  0x00007db368a580ad n/a (libwebkit2gtk-4.1.so.0 + 0x12580ad)
                #5  0x00007db368a43e96 n/a (libwebkit2gtk-4.1.so.0 + 0x1243e96)
                #6  0x00007db368a0384e n/a (libwebkit2gtk-4.1.so.0 + 0x120384e)
                #7  0x00007db368a01e77 n/a (libwebkit2gtk-4.1.so.0 + 0x1201e77)
                #8  0x00007db36873d72c n/a (libwebkit2gtk-4.1.so.0 + 0xf3d72c)
                #9  0x00007db36807427e n/a (libwebkit2gtk-4.1.so.0 + 0x87427e)
                #10 0x00007db36849ebe0 n/a (libwebkit2gtk-4.1.so.0 + 0xc9ebe0)
                #11 0x00007db36849edd7 n/a (libwebkit2gtk-4.1.so.0 + 0xc9edd7)
                #12 0x00007db36849ef08 n/a (libwebkit2gtk-4.1.so.0 + 0xc9ef08)
                #13 0x00007db366061bc5 n/a (libjavascriptcoregtk-4.1.so.0 + 0x1861bc5)
                #14 0x00007db36611cb1d n/a (libjavascriptcoregtk-4.1.so.0 + 0x191cb1d)
                #15 0x00007db36611bc51 n/a (libjavascriptcoregtk-4.1.so.0 + 0x191bc51)
                #16 0x00007db36250949e n/a (libglib-2.0.so.0 + 0x5d49e)
                #17 0x00007db362568737 n/a (libglib-2.0.so.0 + 0xbc737)
                #18 0x00007db362509f87 g_main_loop_run (libglib-2.0.so.0 + 0x5df87)
                #19 0x00007db36611c1b4 _ZN3WTF7RunLoop3runEv (libjavascriptcoregtk-4.1.so.0 + 0x191c1b4)
                #20 0x00007db368a586a4 n/a (libwebkit2gtk-4.1.so.0 + 0x12586a4)
                #21 0x00007db36182b285 __libc_start_call_main (/nix/store/57iz36553175g3178pvxjij8z5rcsd4n-glibc-2.42-61/lib/libc.so.6 + 0x2b285)
                #22 0x00007db36182b338 __libc_start_main@@GLIBC_2.34 (/nix/store/57iz36553175g3178pvxjij8z5rcsd4n-glibc-2.42-61/lib/libc.so.6 + 0x2b338)
                #23 0x000058399b091085 n/a (n/a + 0x0)
                ELF object binary architecture: AMD x86-64

[qu1ck]

Sorry I can't really provide much support here because I don't use nixos and am not familiar with it's sandboxing. You may want to reach out to whoever packaged it for nixos.

For what it's worth: the crash is in the webkitgtk 4.1, not in my app. TrguiNG 1.4 may work because it was last version on the old tauri v1 framework which used older webkitgtk 4.0.

[qu1ck]

The issue can be because some libs bundled in appimage conflict with mesa or other libs on host os since it's built on ubuntu.

Some things you can try:
GDK_BACKEND=x11 appimage-run TrguiNG_1.5.1_amd64.AppImage
to run the app in xwayland
WEBKIT_DISABLE_COMPOSITING_MODE=1 appimage-run TrguiNG_1.5.1_amd64.AppImage
to disable graphics accelerated rendering

[adam-tj]

The good news is that I managed to fix my issue by passing GDK_BACKEND=x11 as an environmental value when running the package from the NixOS repos. Unfortunately the AppImage is still borked for me but that shouldn't matter now that it's possible to run the software on NixOS through both the package manager and flatpak?

[qu1ck]

Yeah I provide multiple options so that at least one (usually flatpak) works without issues.