... every link on the source.bungie.org site for AlephOne editors is dead?:
http://source.bungie.org/dev/tool_development.html
After reading up on the alternatives to mapmaking under OS9, I'm really disapointed/confused why there isn't an effort to create new tools. The concept goes hand in hand with new engine development.
Emulation doesn't work from my discussions with Anthony (BarbX) under Basalisk II - Marathon would run, but Forge would freeze up and crash.
I'm sure it's been shouted about before, but I wish there was an alternative for non Classic systems. Aside from me shipping an older Mac to WMaiD teammates who no longer have access to an OS9 box, I can't locate any.
-Blayne