Bitcoin Optech #292: Updating BIP21 bitcoin URIs, Adding More BIP Editors & More This issue describes a discussion about updating the specification for BIP21 bitcoin: URIs, a proposal to manage multiple concurrent MuSig2 signing sessions with a minimum of state, discusses tools that allow quickly porting the Bitcoin Core GitHub project to a self-hosted GitLab project, and more. https://www.nobsbitcoin.com/bitcoin-optech-292/