Does anyone here have experience with Greg Porter's BTRC published End All, Be All (EABA) tabletop rule system? I'm fairly new to EABA, and it's very hard to find people who are aware of this system. But it has very good reviews and, having read dozens of RPGs (not books, different games) I can certify that it's one of the cleanest systems and best pdfs I've ever seen.

EABA has a gadget, weapon, vehicle, civilization, etc. designer supplement called Stuff! and Porter had a kind of forerunner called Guns, Guns, Guns! or 3G3, which was a very good weapon designer for any system. Stuff!, 3G3 and EABA are a bit like GURPS in that many of the statistics are roughly convertible or actually described in real world units and substances, so you can do a straight 1:1 mapping with any game systems which use such units in mechanics or designing objects. This also makes it easy to map real world objects into EABA.

I am really impressed by EABA v2.01 system and highly functional pdf itself. I am going to start using Stuff! & 3G3 as a resource for designing things for other games, but really want to play it itself.

https://www.btrc.net/categories/menu-eaba