Repo folding BabyJubJub EdDSA signatures using arkeddsa, showcasing usage of Sonobe with Arkworks.
The main idea is to prove z_n = F(F(...~F(F(F(z_0))))), where n is the number of BabyJubJub EdDSA signature verifications (F) that we compute. Proving this in a 'normal' R1CS circuit for a large n would be too costly, but with folding we can manage to prove it in a reasonable time span.
For more info about Sonobe, check out Sonobe's docs.