[doppioandante]

You may be interested in muon: https://git.sr.ht/~lattis/muon/

[cozzyd]

Terrible name. A muon is a lepton, not a meson.

If it were a lighter replacement of electron, muon would be an appropriate (if counterintuitive) name.

There are so many mesons (pion, kaon, \eta, \rho, J/\psi, D, B, \omega,\upsilon), why not pick one of those?