The idea is to see how far a deliberately minimal language can be pushed using only core Linux primitives (pipes, dd, file operations) and direct interaction with SQLite database files.
Brainfuck was chosen because it is intentionally extreme. Even compiling the generated code turned into an adventure: the Brainfuck compiler emits C, and the output was so large that gcc couldn't compile it, though clang could.
This is the sort of project no sane developer would normally attempt. With AI assistance, however, it became feasible to explore in part of a Saturday.