Maybe I'll actually get round to implementing my ideas 🤷
I guess there's no harm in making it work even if nobody uses it.
I know the peertube one is sorta broken at the minute because the WASM POW script doesn't accept difficulty as a variable. Maybe I should check up and see if anyone has fixed it.
Check the whole path of the filament, or maybe rotate the part before printing. Sometimes a combination of factors can cause just enough friction to under-extrude in just parts of a print. I sometimes get it when the filament roll rubs on the holder. This looks like it could be that it's doing a fast bit while twisting the Bowden tube.