Add Polish translation.
Binaries for macOS and Windows are code-signed. All files are signed indirectly (via sha256sum.txt) by PGP key:
868184069239FF65DE0BCD7D D9BAE35991DE5B22 szczepan@nitrokey.com
Snap package could be updated from stable channel with the following command:
snap refresh nitrokey-app --devmode
or installed via:
snap install nitrokey-app --devmode