Stunnix Perl-Obfus is a unique solution for protecting your valuable intellectual property from possible Perl source code piracy/studying/rework. It's an advanced and extremely reliable obfuscator for the Perl source code. It converts the Perl source files (.pl and .pm) into highly mangled and obfuscated forms, making them extremely difficult to study, analyse, reuse, or re-work for competitors or customers, while fully retaining functionality of the original source code. It's not a compiler to machine code, and the obfuscated form will still be the usual Perl source code, and so will work on all platforms the original source worked on.
Dia2Postgres is a Perl script that can be used to convert Dia diagrams into PostgreSQL scripts or PHP mirror classes which can add, update, and modify table entries automatically. It has support for inheritance, simple references (limited to a single field), and a fake enum type which creates a table.