This looks interesting....

[zigrat]

https://patchnride.com/

Don't know if it will work for tubeless but interesting nonetheless

[Richpips]

Whilst I'm not going to rubbish it. There is a reliance on being able to find the puncture with the tyre on. It's often hard enough to find a puncture with the tube out of the tyre.

[Cheeky Monkey]

I thought from reading about this before that it only does road tyres (though an MTB compatible one might be in development).

Richpips makes a good point and TBH I've never felt a spare tube / glueless patches or a trad' repair kit weren't up to the job.

HYOH

[RobMac]

The guy in the video is wearing his courier bag upside down

[TheBrownDog]

The guy in the video is wearing his courier bag upside down

He's riding on the footpath too ... bloody idiot cyclists. I'm sure I had something kinda like that for fixing tubeless motorbike tyres back at the tail end of the Dachshund of Time. Never worked as it was impossible to find a puncture on the outside of a a muddy knobbly tyre.