Rust Bitcoin Summit

day 1

rust-bitcoin

• stop at rust-bitcoin 0.32
• bdk 2.0 -> rust-bitcoin 0.33.0 -> primitives
• look into compat crate
• bindings into bitcoindevkit for rust-bitcoin
  • all of them

#lookingforhelp

• support for simd ChaCha20-Poly1305 and bitcoin hashes

• async http (minreq fork?) no unicode optional async, openssl and rustls, low dependencies, system native ideally

• CVE rust-miniscript soon

• fixing CVE rust-bitcoin back to 0.29

• pure rust version of verification stuff kiks

• invert secp traits for impl by default prod or other secp c or non-c

• code size discussion

  • public key error issue
  • context generic maybe issue, will try making dyn
  • is trait object self, needs to be checked

day 2

BDK

• feature requests

  • labels
  • events
  • cpfp example
  • checkin Cargo.lock at releases for dep audits

• deeper dive with Mammal

  • adding wallet name for loadparams ie. postgres

  • fee rate check for not over paying

  • use rust-bitcoin psbt and remove signing from wallet

  • vectorized sigs ie. from ledger into psbt

  • migrate old pre 1.0 wallet last given index

  • tnull better light client protocol?

    • handle submit package
    • more efficient
    • previous outputs
    • get chain tip to handle reorgs
    • neutrum server? evan
    • use ohttp for proxy
    • bandwidth compare/analysis for cbf vs espora/electrum

  • rust-bitcoin-maintainers tools

  • check linux kernel maintainers file bip32 psbt

  • or owners file

• Rob Anchorwatch

  • re: unspendable tapkey, ok to just use the one in the spec

• Hunter Beast

  • BitMask

• Thunder docs

  • glossary

• unifi

  • deterministic builds
    • with nix https://github.com/ipetkov/crane ?

• nix tool https://github.com/ipetkov/crane

• HunterBeast

  • how to handle loss of TransactionDetails
  • needs single descriptor wallet

day 3

LDK

• Matt recommends lib fuzzer

  • for BDK should focus on chain crate reorgs & balance calc

• question about internal vs no internal descriptor {0;1}

• dnssec_prover talk bip-353

  • try satsto.me https://satsto.me/ and twelve.cash https://twelve.cash
  • try opensrs https://opensrs.com/
  • try phoenix.me
  • TXT record <username or *>.user._bitcoin-payment.<domain> data is bip21 URI

• Frost tutorial

  • secp256kfun
  • proptesting vs fuzz testing
  • utxo.club

day 4

Fedimint

• https://github.com/aleph-zero-foundation/AlephBFT
• asset liability modules
• using rocksdb links to native lib
• question/todo check for 64 bit address merkle tree issue
• question about onchain deposit script with timeout/return condition
• version 5 allowing better upgrade support
• stabilitypool 3rd party module
• nonce custom guess module?
• mprocs frontend devimint env
• social recovery hash video used by gardians to restore
• fedimint/CODEOWNERS

Day 5

• Payjoin cli

  • v2 cli demo
  • https://ishaana.com/blog/wallet_fingerprinting/

• Cashu Rust + Payjoin

  • mint cli creates payjoin proposal
  • tokens B version uses cbor
  • uses BDK onchain wallet

• Retro for this week

  • thanks Jose bbq, Park hosting, Spiral food, Fedi social night
  • tab conf , before next year in 2025
  • week is too much, 3 days better
  • scheduled hacking time, hacker garden?
  • socratic prep
  • hackaton?
  • social night
  • how to do more coding
  • how to do sizing? projects vs people? but teams coming together is important.
  • need to organize volunteers
  • likes size around this 30 ppl
  • senior ppl prefered but teams should be able to bring new folks
  • TABConf good for bigger groups and training new folks
  • foss month in April projects welcome to come to the park
  • steve: make daily name tags
  • steve: line up volunteers in advance for setup, cleanup and to organize social events, running hackathon
  • steve: pre-schedule podcast recording day/time

• Kyoto

  • demo with swift app sync
  • transport options like http, tor
  • needs work on peer selection
  • Liana rust HWI library??

• RGB

  • https://cryptoquick.com/files/BitMask-RGB-v2.pdf

• VLS

  • VLS + ValidiTEE
  • OP-TEE with ARM TrustZone (A arch only) coretexA
  • Rockchip 3399 / Radxa Rock4 SBC
  • Can work without Secure Element, Some may have one

• Citadel Dispatch with Matt and Kodi

  • https://serve.podhome.fm/episodepage/CitadelDispatch/cd136-rust-bitcoin-summit-with-poelstra-harding-myers-corallo-and-more

• Nick discussion

• FediMints Desktop

  • dioxus https://dioxuslabs.com/
  • cross-platform

• Bitcoin Safe

  • desktop wallet
  • wizard for setup
  • great wallet seed sheet
  • nostr integration, co-signer chat
  • future CBF
  • categories for tx data

• Arti

  • sqlite dependency with MSRV issues
  • supports clearnet and onion services
  • in future will allow hosting private service
  • need new HTTP client
  • need apps to be generic over data streams
  • lots of tor crates + tokio + std

• Nix with DPC

  • how the language works
  • derivation
  • maybe home manager for user daemon management