Ah, the memories.

The startup I joined in 1999 had its own application server loosely based on AOLServer architecture.

We had Apache + mod_tcl, IIS with our own ISAPI extension, then in box connections for all major RDMS across all key UNIXes and Windows NT/2000.

Some left to join companies doing Vignette projects, others eventually created OutSystems redoing the same ideas, but with the newly released .NET.

However it was also a lesson in performance issues, and the constant pressure to rewrite Tcl code into C extensions.

https://github.com/naviserver-project/naviserver has you covered

Phil Greenspun is still active on X: https://x.com/PhilipGreenspun

Some throwbacks of his from 1999:

https://philip.greenspun.com/wtr/aolserver/introduction-1.ht...

https://philip.greenspun.com/wtr/aolserver/introduction-2.ht...

And OpenACS!

Or Kenny Tilton's celtk or cello?