What is the best way to manage nonces for concurrent transactions? This is an absolute headache. 

This is in an Astro endpoint on Vercel, if that matters.

Noodling on this for days, and @syndicate just.... solves it.

Infrastructure for powerful onchain products + communities at scale. syndicate.io, build Frames frame.syndicate.io, cast /syndicate, more linktr.ee/syndicateio

Noodling on this for days, and @syndicate just.... solves it. 
https://warpcast.com/iammatthias/0xd2f50560

Co-founder of @syndicate. Creator of $AGLD, Core Team at ConstitutionDAO. FID #155

Engineer @ Syndicate, prev: Rainbow, Foundation & Cloudflare /poetic-web, builds caststorage.com