Linux and macOS support would be highly appreciated.

Linux and macOS support are planned, but no promises on the timeframe.

In the meantime, try the Python script version of this app. It should work on Linux.

Hi NekomusuMae! If you see the fork and also the pull request i made on this repository you can find linux support
(◦'⌣'◦)/

I think that the title must be edited now.

Linux should be at parity with Windows now. I'll include a precompiled binary when the next release comes out, but you can always build from source if you want the latest fixes (or the release binary doesn't work for your distro).