It's great to work with old friends as if 40 years hadn't passed.
Using old code feels like driving a vintage car. The quirks are more noticeable. I'm hoping we can smooth some of the rough edges of using it on different platforms and also support bringing up some of the applications built in Interlisp as well.
Interlisp-10 (for PDP10 TENEX and TOPS-20) predated "Open Source"; at the time Interlisp sources had no copyright because of government funding.