I found the #AppleIIGS disk images and docs I'd downloaded last year, so I'm going to mess around with the GSplus emulator and check out the ORCA compilers which I purchased via Byteworks because they're still making new updates to the C compiler! You have to buy the latest full version to install the updated releases on the GitHub page. https://github.com/byteworksinc/ORCA-C/releases
I bought the package with all the source code as well. IIRC, the name comes from the macro assembler ORCA/M (macro spelled backwards).
