A rev/pwn challenge for redpwnCTF 2021.
Some rough notes I made for myself are in notes.md. The assembler
I wrote is in assembler/assembler.hs, and is used for
assembling the solutions in solve/. Reproducible builds of challenge
artifacts are done with Docker; make out will build the binaries, and
make pack/dist.tar creates the tarball of files distrbuted to competitors.