EQGM

@TheZ4ro，my computer system is ubuntu21.10 (gnome, 5.15.7-051507-generic),and it works well.

I get the same error： ``` error: failed to run custom build command for `below v0.5.0` Caused by: process didn't exit successfully: `/tmp/cargo-installNdwkIq/release/build/below-4a107ec4e84fce69/build-script-build` (exit status: 101) --- stderr Warning: unrecognized...

I fixed it after installed rustfmt: ``` sudo apt install rustfmt ```

参见：#785

@aqrun establish qt5 and pyqt5 environment.

我的manjaro使用的是内核是4.19.80，未见异常。你可以改一下使用的内核试试看。

参见：https://github.com/shadowsocks/shadowsocks-qt5/issues/785

参见：#785

I think this is maybe a solution:create a path /mnt/masscode,link the path to the storage directory and add the "removable-media" plugin to snap file, according to [removable-media-interface](https://snapcraft.io/docs/removable-media-interface)

temporary solution: (1)add the directory to the left column of nautilus (2)edit the snapcraft.yaml file,change "confinement: strict" to "confinement: devmode". (3)rebuild massCode (4)reinstall massCode。 ``` snap install masscode_2.9.0_amd64.snap --dangerous --devmode...