I'd point out that the "perl+SSI" codebase was actually mod_perl, Catalyst, DBIx::Class etc. using SSI as a sort of primitive ESI replacement to ease caching of

I'd point out that the "perl+SSI" codebase was actually mod_perl, Catalyst, DBIx::Class etc. using SSI as a sort of primitive ESI replacement to ease caching of partial pages. The strange politics that led to the perl on rails monstrosity apparently aren't universal.