I'm the first person to complain about bloated electron apps, but this is a task that I do so rarely I really don't mind it's electron.

This is, btw, not really an alternative to etcher, more like an alternative to rufus or unetbootin.

Indeed, the reason they made etcher was because they had too many help requests from hobbyists trying to flash their raspi sd cards. So they made a candy UI, and the requests dropped.

The candy UI is the main goal of etcher, if you remove that, then why not use the already very fine existing solutions?