After checking you fulfill all the requirements of Eiciel.
$ tar xvfj eiciel-XXX.tar.bz2 $ meson setup builddir $ cd builddir $ meson compile $ meson install
Don't forget to restart GNOME Files. The following command will quit it. Then you can start it again.
$ nautilus -q
The GNOME Files plugin support is optional, pass -Dnautilus-plugin=disabled to the meson setup command above, to disable it.