@antonreshetov you tagged this with help wanted - any particular reason? Is it due to the core dependencies?

You could implement https://github.com/marketplace/actions/electron-builder-action, I could probably help with that if I find the time for it. :D

It already builds for Linux. To get the snap to install after building since it's not published to the snap store yet, you just need to use the --force-dangerous flag.

For example:

yarn run build
cd dist
sudo snap install ./image-optimizer_1.3.2_amd64.snap --force-dangerous

And yeah, the release build action would just need to be updated to build Linux as well. I guess it just builds Mac for now, but the config and support is all there.

Once the action is updated to build snap releases, the README would just need to say to use the `--force-dangerous`` install script until it's in the Snap store.