add-apt-repository is not supported in Deepin OS. Do you have any other sources?

[chuyuanlinzi]

No description provided.

[pigpigyyy]

If add-apt-repository is not supported in Deepin OS, you can manually download the .deb package for Dora SSR and install it. You can find the necessary packages at the following link (be careful to choose the right CPU arch version):

🔗 Dora SSR PPA on Launchpad

Possibly Worked Steps in Deepin OS

1. Download the .deb Package:
   Visit the provided link, select the desired version of the package, and download the .deb file.

2. Install the Package:
   Open a terminal in the directory where the .deb file is downloaded and run the following command:

   sudo dpkg -i <package_name>.deb

   Replace <package_name> with the name of the downloaded .deb file.

3. Fix Any Missing Dependencies:
   If there are any missing dependencies, run:

   sudo apt-get -f install