Download Latest Version bootf2BCA_v1.5_flet_windows_x64.exe (109.9 MB) Google Add to Preferred Sources
Home / bootf2BCA_v1.5 / Flet_edition
Name Modified Size InfoDownloads / Week
Parent folder
bootf2BCA_v1.5_flet_linux_x86_64 2026-10-15 145.7 MB
SHA256SUMS.txt 2026-10-15 99 Bytes
test.txt 2026-10-15 298 Bytes
bootf2BCA_v1.5_flet_linux_x86_64.png 2026-10-15 5.4 kB
README_flet_linux.txt 2026-10-15 2.6 kB
ref.txt 2026-10-15 239 Bytes
bootf2BCA_v1.5_flet_linux_x86_64.desktop 2026-10-15 180 Bytes
Totals: 7 Items   145.7 MB 1
bootf2BCA v1.5 - Flet edition (native desktop GUI), Linux x86-64 single-file executables (build 5).

START
  chmod +x bootf2BCA_v1.5_flet_linux_x86_64      (or bootf2BCA_v1.5_flet_qt_linux_x86_64)
  ./bootf2BCA_v1.5_flet_linux_x86_64            desktop window (X11 and Wayland, e.g. KDE Plasma)
  ./bootf2BCA_v1.5_flet_linux_x86_64 --web      same GUI in the web browser: http://127.0.0.1:8550
  ./bootf2BCA_v1.5_flet_linux_x86_64 --debug    detailed log in the console
  ./bootf2BCA_v1.5_flet_linux_x86_64 --cli --ref ref.txt --test test.txt --out report.txt

The first start unpacks the GUI client to ~/.flet (a few seconds). The window needs GTK 3
(openSUSE: sudo zypper install libgtk-3-0). Native file dialogs use kdialog (KDE) or zenity (GNOME);
without them a text box for the file path is shown.

TWO VERSIONS
  bootf2BCA_v1.5_flet_linux_x86_64      GTK/Flutter window (about 146 MB)
  bootf2BCA_v1.5_flet_qt_linux_x86_64   the same + native Qt window (Qt WebEngine, KDE's toolkit), used
                                        automatically if the Flutter window cannot be opened (about 350 MB)

BUILD 5 FIX: up to build 4 the Flutter client inherited the library path of the single-file executable and
loaded its bundled glib 2.90 together with the system GTK (glib 2.84 on openSUSE Leap 16) -> crash with
code -11. Build 5 starts the client with the system libraries.

IF THE WINDOW DOES NOT OPEN ("exited with code -11 (crash: segmentation fault)")
The program retries automatically: (1) default, (2) X11/XWayland backend, (3) software OpenGL,
(4) software OpenGL with a plain GTK environment, and then (Qt version) shows the same GUI in a
NATIVE QT WINDOW. The GTK version opens the GUI in the web browser instead. The window type that worked
is remembered (~/.config/bootf2bca/window.json), so the next start opens it directly.
A diagnostic report is written to ~/bootf2BCA_crash_report.txt - please send it to the author.
  --window qt        open the native Qt window directly (Qt version)
  --window flet      try the Flutter window again (--reset-window forgets the remembered choice)
  --window browser   same as --web
Manual settings for the Flutter window, e.g.
  GDK_BACKEND=x11 NO_AT_BRIDGE=1 ./bootf2BCA_v1.5_flet_linux_x86_64
  GDK_BACKEND=x11 LIBGL_ALWAYS_SOFTWARE=1 NO_AT_BRIDGE=1 ./bootf2BCA_v1.5_flet_linux_x86_64
BOOTF2BCA_NO_RETRY=1 disables the automatic retries.
Crash details for a bug report:  coredumpctl info --no-pager flet | head -80


Optional menu entry: edit the Exec/Icon paths in bootf2BCA_v1.5_flet_linux_x86_64.desktop and copy it to
~/.local/share/applications/.
Source: README_flet_linux.txt, updated 2026-10-15