Feel free to check, modify, or create your own editions of this, because it depends upon you, how to use it.

With the power of ElectronJS, run it everywhere, run it anywhere, on Windows, Linux & MacOS.

No need of bulky interface when just need the bare minimum, ditch the complexity.

Comes with flexible drag and drop support. Just drag & drop your fav video and it's subtitle file, and let it handle the rest.