Tootfinder

Sometimes it is handy to use archives formats that do not confuse our windows friends. Or perhaps you want a quick listing, or to update files without reading and writing the entire thing (i.e. non-solid archives).
Zip or 7z can be handy. The problem is that with their Windows hertitage they do not (reliably) retain certain UNIX-y 'things'. Be that permissions or symlinks.
Here is an example symlink workaround. Permissions left as an exercise for the reader:

A simple shell‑based workaround for archiving projects with symlinks in formats that don’t preserve them (e.g. .7z or certain .zip files). It generates a script that records all symlinks, excludes them from the archive, and later recreates them after extraction.
A simple shell‑based workaround for archiving projects with symlinks in formats that don’t preserve them (e.g. .7z or certain .zip files). It generates a script that records all symlinks, excludes ...

How Well do Diffusion Policies Learn Kinematic Constraint Manifolds?
Lexi Foland, Thomas Cohn, Adam Wei, Nicholas Pfaff, Boyuan Chen, Russ Tedrake
https://arxiv.org/abs/2510.01404

How Well do Diffusion Policies Learn Kinematic Constraint Manifolds?
Diffusion policies have shown impressive results in robot imitation learning, even for tasks that require satisfaction of kinematic equality constraints. However, task performance alone is not a reliable indicator of the policy's ability to precisely learn constraints in the training data. To investigate, we analyze how well diffusion policies discover these manifolds with a case study on a bimanual pick-and-place task that encourages fulfillment of a kinematic constraint for success. We study …