The idea of Cadastre is to make a visualizaton of tilde.town by letting all users make their own ascii art home and stitch this together.
Usage instructions can be found on http://tilde.town/~troido/cadastre
A map of the current tilde.town cadastre can be found here: http://tilde.town/~troido/cadastre/town.html
The raw data of the tilde.town cadastre can be found here: http://tilde.town/~troido/cadastre/town.json
This program is meant to run from a cron job to periodically scrape all user directories