I took a look at T3X a while back, it looked really interesting. Thanks for reminding me.
My greatest claim to fame was embedding a Z80 emulator in Unreal Engine, extending it with TCP/IP and VT100 emulation, and being able to connect to BBS's on the internet, and run Rogue, Zork and Wordstar along with most other Z80 CP/M software:
https://t3x.org/t3x/0/index.html
Pascal like language, compiles at Unix and to DOS and CP/M, it can be run under CP/M too. It can compile both binaries and bytecode.
I ran a faithful Ladder port natively under a GNU Unix 386, it's really good:
https://t3x.org/t3x/0/programs.html