/rd/lm (/pub/lm) is being retired! The most likely new home for this page is on lmrobotics.org as an index to ALoTO-specific resources, as this page is now.
/pub/lm/tutorial is also being retired in favor of https://mi-ftc.github.io, a new GitHub Pages site to host exactly the same content but with the opportunity for collaboration. (Hopefully it comes up soon - see how GitHub pages is doing here. At the time of writing, Pages is "degraded".) However, perhaps I'll copy the GitHub site here at some point as a backup.