For those those who liked old West End Games D6 Star Wars rules.
https://www.drivethrurpg.com/m/product/144558
Personally, I like Mini-Six Bare Bones quite a bit, though it's not perfect. It speeds up combat, fixes some OP problems with hero points (Force Points in Star Wars) by making them have weaker effects, but more variety of choices.
The downside is a magic system that's not well thought out. It's easily fixed by just giving the GM more control of difficulty numbers and effectiveness.
If you ever wanted a physical copy, it's now just half price at $5.90. shipping is likely to be more than that.
I have it and like it. If you use it as a toolkit for using with Open D6, I think it's well worth the money.
There's one other book I think is really useful to have if you're an Open D6 player and that's Unbound D6: https://www.drivethrurpg.com/product/302645/UNBOUND-D6-RolePlaying. The big innovation it brings is fast adding multiple six sided dice by having them be pass/fail dice.
Between the two books, you get a lot of changes that make it smoother but still feeling like the WEG version.