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Flechette
Version 1.0.3276
Download a .deb for AMD64
AMD64: Download .tar.gz
Or install it from the command line:
$ CPU=$(dpkg --print-architecture)
$ wget https://downloads.flechette.app/desktop/debian/flechette_1.0.3276_${CPU}.deb
$ sudo apt install ./flechette_1.0.3276_${CPU}.deb