What kernel version and or other version dependencies are needed to get composefs to work (with podman)?

[KristoferHansson]

I started trying to get composefs support enabled with podman(5.3.0), running in WSL with kernel Linux version 5.15.167.4-microsoft-standard-WSL2, but without really digging in the requirements. Is this a futile attempt at the moment and the versions I have?

Kernel 6.6.36.6 is available for WSL2 from MS
https://github.com/microsoft/WSL2-Linux-Kernel/releases
https://learn.microsoft.com/en-us/community/content/wsl-user-msft-kernel-v6

Have enabled composefs in storage.conf according to: https://github.com/containers/storage/docs/containers-storage-composefs.md.

Running with --root <path> and --config <path> pull alpine, then listing the file structure under containers/storage/overlay/, comparing it to what I expect it to look like at: https://archive.fosdem.org/2024/events/attachments/fosdem-2024-3250-composefs-and-containers/slides/22189/ComposeFS_fosdem_pb16gQM.pdf does not show any traces of compsefs being used, and console outputs of pull mentions nothing about any image_conversion taking place.

Note: I'm not getting any errors.