> 4. How to save the code to our own disks to run it? This is extremely important. Copy and paste is not an option for serious work. This can be a serious prob

> 4. How to save the code to our own disks to run it? This is extremely important. Copy and paste is not an option for serious work. This can be a serious problem, so just as an inspiration I would like to share what I have done once to solve the 'my browser can't access my disk problem': I have a Nextcloud sync client running on all my devices and the Nextcloud offers a WebDAV API. So the easy solution was to just let the web app sync my files to my Nextcloud which in turn synced the files to my disk. Maybe something similar is possible with Dropbox or Google Drive. Yes, such kind of a setup creates some friction (one-time setup + dependence on a 3rd party service), but it is better than copy and paste and doesn't depend on special browser features.