This post is the collection of all dev call agendas for the Bitcoin Development Kit language bindings in 2024. I host the call every second week on the BDK Discord voice channel. The live pages for these calls lives here on HackMD, but this page is a way to archive them and keep these call agendas public without relying on my keeping an active HackMD subscription.

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January 9

📅 January 9, 2024 13:00 UTC
📍 Discord General Voice Channel

Discussion Items

• Progress update on the migration to 1.0 API
  • Persistence
  • is_valid_for_network
• Uniffi adds support for non-exhaustive enums
• New case studies
• Getting block on the call
• Possible release of a 0.30 patch
• Names for the sample apps repositories
• Removing the tutorials from the website
• Book of BDK
• Alpha 3 release notes
• Any review begs? :pray:
• Blockers? 🪨

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January 23

📅 January 23, 2024 13:00 UTC
📍 Discord General Voice Channel

Discussion Items

• Progress update on the migration to 1.0 API
  • Persistence
  • Sync
  • Releasing an alpha 4?
• Release of 0.31.0
• Removing swiftsettings from bdk-swift
• New Address type discussion
• Exposing FeeRate (which is also changing in bdk I think?)
• CI errors with Esplora
• Book of BDK
• Website revamp
• Any review begs? :pray:
• Blockers? 🪨

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February 6

📅 February 6, 2024 13:00 UTC
📍 Discord General Voice Channel

Discussion Items

• Progress update on the migration to 1.0 API
  • Wallet Persistence PR ready to go
  • Discussion around how to expose the generics of the Store + TxBuilder
  • Sync/Scan
  • Upgrade to alpha 5 :tada:
  • Bump uniffi to 0.26
  • The big Errors raid
• Playing around with async + API docs
• Book of BDK new RPC page
• Any review begs? :pray:
• Blockers? 🪨

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February 20

📅 February 20, 2024 13:00 UTC
📍 Discord General Voice Channel

Pull Requests

• Merged
  • Bump uniffi to 0.26
  • BDK Alpha 6 PR
  • Wallet Persistence
    • Live tests failed
• Open/WIP
  • UDL file supports docstring comments, here’s our experiment adding of docstrings
  • Esplora Error
  • Sync
• Other
  • rust-esplora-client

Topics

• BDK Swift Example Wallet
  • Apple guidelines
• Merge Access

Events

• Rust Meetup: Building a Bitcoin Wallet Library in Rust

Other

• Any review begs? :pray:
• Blockers? 🪨

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March 5

📅 March 5, 2024 13:00 UTC
📍 Discord General Voice Channel

Pull Requests

• Open
  • Fix live tests
    • Live tests failed
  • Esplora Error
  • Sync Matthew + Steve
  • WalletError for Address
• WIP
  • UDL file supports docstring comments, here’s our experiment adding of docstrings

Topics

• Code Rabbit
• BDK Swift Example Wallet
  • Apple guidelines
  • Apple Deveveloper Account for BDKF ✅
  • Testflight for iOS Wallet
  • Migration to 1.0.0 with sync

Events

• LDK Hackathon at Advancing Bitcoin - Mar 13-15

Other

• Any review begs? :pray:
• Blockers? 🪨

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April 2

📅 April 2, 2024 13:00 UTC
📍 Discord General Voice Channel

Pull Requests

• Adding some justfiles
• Gradle upgrades (JVM and Android)
• Releasing Python 3.11 and 3.12 libraries
• Bumping bdk to alpha 8
• Async Esplora
• New errors
• SQLite

Discussion

• Alpha 7 is out! :tada:
• bdk-swift bug is solved with 0.31.1

Other

• Any review begs? :pray:
• Blockers? 🪨

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April 16

📅 April 16, 2024 13:00 UTC
📍 Discord General Voice Channel

Pull Requests

• New get_tx(), list_unspent(), and list_output() methods on the wallet
• Add CannonicalTx type for transaction() method return
• Better errors
• Better Android + JVM builds

Discussion

• Bumping to alpha 9
• BDK updates
• Changing the time of this meeting (17:00 UTC?)
• Updating the example applications
• Book of BDK

Other

• Any review begs? :pray:
• Blockers? 🪨

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April 30

📅 April 30, 2024 17:00 UTC
📍 Discord General Voice Channel

Dependend Projects

• Bitcoin Safe

Pull Requests

• Removing our generic error type #495
• Various refactors and codebase cleanups
• Why Build Bindings? (discussion of what a 1.0 API means for FFI)
• Exposing errors in ffi #509
• Using Rust 1.77.1
• PRs of the past 2 weeks

Discussion

• BDK updates
• Signature verification for bdk-swift #368
• New time
• Minimum supported Android API #500
• New bdk-android and bdk-jvm 0.31.1
• Procedural macros for uniffi
• Users interviews
• Kotlin Multiplatform
• Summer of Bitcoin
• Code Rabbit AI
• Cleaning up issues
• Testing the example applications
• Mainnet BDK wallet?
• Book of BDK

Other

• Any review begs? :pray:
• Blockers? 🪨

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May 14

📅 May 14, 2024 17:00 UTC
📍 Discord General Voice Channel

Pull Requests

• PRs of the past 2 weeks
• Bump to alpha 10
• Bump to alpha 11
• Bringing back the in-memory wallet

Discussion

• Using signet for live tests
• Bringing back some of our old types and methods
• Using --library mode for bindings code generation (preparing for proc macros)
• Bumping uniffi to 0.27.1
• BDK updates
• Code Rabbit AI
• Book of BDK

Other

• Any review begs? :pray:
• Blockers? 🪨

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May 28

📅 May 28, 2024 17:00 UTC
📍 Discord General Voice Channel

Pull Requests

• PRs of the past 2 weeks
• Alpha 12 and the SQLite persistence
• Inspect spks on Request
• Why build language bindings?

Discussion

• Signet coins anyone?
• BDK updates
• Electrum client
• Kyoto client
• RPC client
• Silent Payments
• Async stuff
• Python libraries hurdles
• Updating the example apps
• Flutter and React Native
• Bring back!
• Kotlin 2.0
• Code Rabbit AI

Other

• Any review begs? :pray:
• Blockers? 🪨

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June 11

📅 June 11, 2024 17:00 UTC
📍 Discord General Voice Channel

Pull Requests

• PRs of the past 2 weeks
• Alpha 12 and the SQLite persistence
• Inspect spks on Request
• #556: Pulling rust-bitcoin into its own library
• #552: Set name of Swift module in uniffi.toml

Discussion

• Bring back!

Other

• Any review begs? :pray:
• Blockers? 🪨

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June 25

📅 June 25, 2024 17:00 UTC
📍 Discord General Voice Channel

Discussion

• Bump to alpha 13

Other

• Any review begs? :pray:
• Blockers? 🪨

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July 9

📅 July 9, 2024 17:00 UTC
📍 Discord General Voice Channel

Discussion

• Bump to alpha 13
• Uniffi gearing up for 1.0 (https://github.com/mozilla/uniffi-rs/issues/2155)

Other

• Any review begs? :pray:
• Blockers? 🪨

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July 23

📅 July 23, 2024 17:00 UTC
📍 Discord General Voice Channel

Discussion

• Roundtable
• Beta release
• Android scripts
• Update of the Uniffi Examples website
• Building Python in CI
• Kyoto client
• Book of BDK
• HackMD Suggest Edit feature

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August 20

📅 August 20, 2024 17:00 UTC
📍 Discord General Voice Channel

Discussion

• Roundtable
• Beta 2 release will fix Electrum CI builds
• Android scripts
• Kyoto client
• Book of BDK
• Bitcoin FFI

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September 3

📅 September 3, 2024 17:00 UTC
📍 Discord General Voice Channel

Discussion

• Roundtable
• Beta 2 release is almost ready to go!
• Android scripts
• Kyoto client
• Book of BDK
• Bitcoin FFI will be in production for the first time as part of the beta 2 release

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September 17

📅 September 17, 2024 17:00 UTC
📍 Discord General Voice Channel

Discussion

• Roundtable
• Beta 2 release is out! :tada:
• x86_64 Android emulator issues
• Book of BDK
• bitcoin-ffi library

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October 1

📅 October 1, 2024 17:00 UTC
📍 Discord General Voice Channel

Discussion

• Roundtable
• Book of BDK
• New APIs (Wallet, TxBuilder)
• New shell scripts for JVM and Android (example)
• Esplora get_tx (also backported to 0.31.2)
• Txid type issue
• Sorting transactions
• x86_64 Android emulator issues
• Script -> ScriptBuf

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October 15

📅 October 15, 2024 17:00 UTC
📍 Discord General Voice Channel

Discussion

• Roundtable
• Book of BDK
• New APIs (Wallet, TxBuilder)

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October 29

📅 October 29, 2024 17:00 UTC
📍 Discord General Voice Channel

Discussion

• Roundtable
• New APIs on TxBuilder
• API docs party
• Issues with bitcoin-ffi name clashes
• Kyoto, bindings, bdk-kyoto
• Book of BDK

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November 12

📅 November 12, 2024 17:00 UTC
📍 Discord General Voice Channel

Discussion

• Roundtable
• Electrum get_height()
• 0.32.0 release last week
• Issues with multiple uniffi libraries
• Policy PR
• API docs
• Book of BDK

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November 26

📅 November 26, 2024 17:00 UTC
📍 Discord General Voice Channel

Discussion

• Roundtable
• Issues with multiple uniffi libraries
• WASM shenanigans!
• API docs (building for Swift, Android, Python)
• Book of BDK
• Kyoto client

Dependent Projects and Support

• Padawan Wallet & KMP Libraries

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December 10

📅 December 10, 2024 17:00 UTC
📍 Discord General Voice Channel

Discussion

• Roundtable
• 1.0 release and beta 6
• Kyoto client
• API docs (building for Swift, Android, Python)
• New bitcoin-ffi types
• Book of BDK