Recently I came across this product:
https://www.amazon.com/Highside-HS32.../dp/B01LZT77G7
It's not cheap but claims to join copper refrigerant pipes up to 1200 PSI without brazing. Also seems to have a bunch of good reviews online. This would make things much easier for DIY projects. It even claims to join copper and aluminum, which is a brazing nightmare.
Part of me says "poppycock!" You can't glue high pressure copper pipes! Then again it is 2023, and chemistry is amazing - we live in the future now!
Anybody know if this actually works? Anybody try it?