Is it a good number for Electron apps? Is it ok nowadays? 150MB seems too much for me.
I also thought that by using Electron an app would be readily portable but I could only find Mac binaries.
Could something like Android webview work? The webview doesn't force each app to include a whole browser. So, maybe single instance of electron runtime with multiple thin apps with "electron-webviews".
You'd still have to bundle a JS engine. Presumably you could build a traditional UI app and include V8, but I still think this isn't a bad use case for Electron (but I agree there are many apps where it isn't the best choice)