AppImage made using sharun and its wrapper quick-sharun, which makes it easy and reliable to turn any binary into a portable package without using containers or similar tricks.

This AppImage bundles everything and it should work on any Linux distro, including old and musl-based ones.

This AppImage doesn't require FUSE to run at all, thanks to the uruntime.

This AppImage is also supplied with the seamless self-updater by default, so any updates to this application won't be missed.
Self-updater doesn't run if AppImage managers like am or soar exist, which manage AppImage integration and updates.
There is also a prompt and config for opting-out of self-updates if desired.

Filesize efficiency compared to flatpak

More at: AnyLinux-AppImages

• If portable .config and/or .home directory is used, app fails to launch due to it not detecting XDG_DOWNLOAD_DIR.
  Additionally, if portable .share directory is used and flatpak Firefox or Chromium-based browser is installed,
  link for the extension in settings won't open due to app thinking that flatpak is in the portable share directory.
  giantpinkrobots/varia#236
• Autostart option in settings doesn't work.
  Copying the desktop file manually to $XDG_CONFIG_HOME/autostart/ makes it work.
  #3
• Varia doesn't send the notification when download starts using the browser extension.
  Tested on Firefox.
  #4