Uncooking DLCs
Though it was not metioned in ModKit guides as far as I know, it is totally possible to uncook DLC resources. However, there are problems with 4 of DLCs.
dlc3, dlc7 and dlc16 - script hangs, no RAM changes. If you force exit, it creates crash log with EXCEPTION_BREAKPOINT and a bunch of trace data. It may be that it takes long time to uncook them, because all of these are Quest DLCs. But no RAM activity and the fact that the other 2 Quest DLCs are OK makes me think that there's a problem with the script itself.
dlc8 - it's Gwent DLC, and it's missing buffers.bundle for some reason. When you run the script, it shows "no unbundled files found" or something similar, but exits clearly.
I don't know if it's officially supported, but may be these are worth a fix anyway.
P.S. Unfortunately, uncooking Quest DLCs does not create any wscript files, so we are still far away from Quest mods.