I was just trying to check if Trac+MariaDB could be used on Haiku, and the answer is Yes 
Trac website (python based) :
MariaDB used as backend (instead of default SQLite) :
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That’s cool! I should mention given the single user, desktop focused design of Haiku, I wouldn’t recommend running medium or large public facing server applications on Haiku today however.
Someday maybe, but not today 
As a side note, Linux, Windows, etc sandbox these kinds of things behind non-root / non-administrative users historically (preserving the host in the event of an exploit)
We should think about growing our ability to sandbox applications and services (without relying on the non-administrative user stuff which is kind of a hack to be honest). It would be a nice first “step” towards having a system to offer public facing services from Haiku more securely.
EDIT: I opened #19455 (Sandboxing / Jailing Haiku applications / services) – Haiku I like moonshots
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