Downloads

Windows: https://github.com/tgeorgiadis/quiver-launcher/releases/download/v3.3.3/QuiverLauncher-win-Portable.zip
Linux x64: https://github.com/tgeorgiadis/quiver-launcher/releases/download/v3.3.3/QuiverLauncher-linux-x64.AppImage
Linux ARM64: https://github.com/tgeorgiadis/quiver-launcher/releases/download/v3.3.3/QuiverLauncher-linux-arm64.AppImage
Android: https://github.com/tgeorgiadis/quiver-launcher/releases/download/v3.3.3/QuiverLauncher-android.apk
macOS: work in progress while I get the signing sorted

Quiver Launcher 3.3.3

Filter catalog apps by platform (Windows, Linux, Mac, Android) using binaries on the latest release. First visit defaults to the OS you are running Quiver on; combo filters such as Windows + Linux (Proton/Wine) are remembered. Unlabeled .zip, .7z, and .rar assets count as Windows.
Fix Linux AppImage Play for ports such as Yu-Gi-Oh / psxrecomp. The app's launcher started, but pressing Play did nothing because the child inherited Quiver’s AppImage identity (APPDIR, APPIMAGE, ARGV0, OWD), an AppImage-prefixed PATH, and a stale PWD. Native games now launch with a host-like environment. Open Folder uses the same sanitizer.
Play writes quiver-launch.log in the app install folder (and appends launch-debug.log next to user data) so a failed launch can be diagnosed without a debugger.
Retry opening a newly downloaded archive when Windows Defender or Search still has it locked, extract 7z/RAR with a streaming reader so solid archives install, and keep the progress bar moving during extraction.