BSD, C, httpd, SQLite.
BCHS is an open source software stack for web
applications.
To prepare a BCHS environment, install OpenBSD, start your editor
of choice, and get to work.
How does a BCHS system look?
See a trivial example.
New: looking to hire BCHS developers?
Try BSDjobs.com.
BCHS is a stable, developer-oriented platform.
Get used to minimalism and security: componentised, privilege-separated binaries in file-system jails.
Most of all, forget your instincts to search Google and StackExchange for every parameter and function
call: man pages are your new best friend.