Hi all, The recent thread around zero-conf channels  provides an opportunity to discuss how the BOLT process handles features and best practices that arise in the wild vs. originating within the process itself. Zero-conf channels are one of many LN innovations on the app layer that have struggled to make their way into the spec. John Carvalho and Bitrefill launched Turbo channels in April 2019 , Breez posted their solution to the mailing list for feedback in August 2020 , and we know at least ACINQ and Muun (amongst others) have their own implementations. In an ideal world there would be a descriptive design document that the app layer implementers had collaborated on over the years that the spec group could then pick up and merge into the BOLTs now that the feature is deemed spec-worthy.
Over the last couple of months, we have discussed the idea of adding a BIP-style process (bLIPs? SPARKs? ) on top of the BOLTs with various members of the community, and have received positive feedback from both app layer and protocol devs. This would not affect the existing BOLT process at all, but simply add a place for app layer best practices to be succinctly described and organized, especially those that require coordination. These features are being built outside of the BOLT process today anyways, so ideally a bLIP process would bring them into the fold instead of leaving them buried in old ML posts or not documented at all. Some potential bLIP ideas that people have mentioned include: each lnurl variant, on-the-fly channel opens, AMP, dynamic commitments, podcast payment metadata, p2p messaging formats, new pathfinding heuristics, remote node connection standards, etc. If the community is interested in moving forward, we've started a branch  describing such a process. It's based on BIP-0002, so not trying to reinvent any wheels. It would be great to have developers from various implementations and from the broader app layer ecosystem volunteer to be listed as editors (basically the same role as in the BIPs). Looking forward to hearing your thoughts! Best, Ryan  https://lists.linuxfoundation.org/pipermail/lightning-dev/2021-June/003074.html  https://www.coindesk.com/bitrefills-thor-turbo-lets-you-get-started-with-bitcoins-lightning-faster  https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-August/002780.html  bLIP = Bitcoin Lightning Improvement Proposal and SPARK = Standardization of Protocols at the Request of the Kommunity (h/t fiatjaf)  https://github.com/ryanthegentry/lightning-rfc/blob/blip-0001/blips/blip-0001.mediawiki
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