Being a Matrix backport attempt, presented for your delight (doubtful) and utility (maybe)
Old rules and docs
These are houserules and setting writeups I no longer use at my table, but are preserved here for others who may be interested.
An incomplete attempt to re-write the in-game Matrix to make more sense
Last modified March 14, 2021: completely rejig how I do the "what's new" section (53a0e05)