Zcash Developer Relations Engineer

[pacu]

April 2026

Executive Summary

April was a month with a lot of mileage and talks. Pacu traveled to Brasil to talk about “how to contribute effectively to the Zcash Ecosystem” at the Privacy house in IPE City Jureré Florianopolis. Also lectured a git workshop for the ZkAvClub and prepared and traveled to Rome for Zingo Labs Hackathon, Zcash Dev Summit and other related events in May. While doing that Pacu worked maintaining and collaborating on Zaino, Lightwalletd and ZODL, creating integration tests, reviewing PRs and creating issues. Additionally responded to ecosystem events, supported different teams of the ecosystem and attended ecosystem calls.

Extended Summary

Zcashd Deprecation

• Outreach:
  • last mile of the Zcashd 6.12.1 outreach initiated by SL and ZODL.
• Community Updates
  • April 3rd
  • April 10th
  • April 17th
  • April 24th
• Development Coordination
  • Supported Zaino folks on internal processes
  • Hosted Zcashd deprecation collaboration calls
  • Wrapped up work LWD parity of Zaino and fixes on lightclient protocol
• Development:
  • Helping out maturing Zaino code for production.
    • Collaborate on development (possible tasks depending on team priorities)
    • Develop and Integrate LWD <> Zainod parity tests in the integration-tests repository (Done, PRs For Review)
      • [#83] add: gRPC parity test suite (Zainod vs. Lightwalletd)
      • Add a focused zcashd ZIP 317 fee bug repro test
      • Zcashd orchard anchor repro on grpc
      • Align CompactTxStreamer responses with lightwalletd
      • zingolabs/zaino#1059
      • fix podman setup in integration tests zingolabs/zaino#1078
    • Continue to assist on PR reviews and testing of Zainod
  • Tested ZODL with Zaino and synced testnet wallet to verify GetBlockRange parity with LWD

DevRel

• Speak at IPE City in event in Florianópolis with Zcash Brazil folks on April 16th
• Prepared and facilitated Git workshop with ZkAvClub April 22nd
• Arranged Logistics for Zcash DevSummit + Zingo Hackhathon (I’m in Rome already)
• Maintain existing projects
  • Fixed ZODL issue while testing Zaino zodl-inc/zodl-ios#1672
  • update ZODL tooling zodl-inc/zodl-ios#1673
  • Update ZecDev security alerts zecdev/zecdev.github.io#33
  • Update Zaino to Zebra 4.3.1 zingolabs/zaino#1041
  • This Removes (and reserves) the protoVersion name and field position. zcash/lightwallet-protocol#26
  • adding GitHub actions to build the resulting changes to proto files and catch any potential issues downstream zcash/lightwallet-protocol#28
• PR Reviews
  • zodl-inc/zodl-ios#1668 (review) left comments to add other fixes that I had to do while testing Zainod
  • zingolabs/zaino#943
  • zingolabs/zaino#951 (review)
  • zcash/zips#1202 (review)
  • zingolabs/zaino#948 (review)
  • zingolabs/zaino#1008 (review)
  • zingolabs/zaino#1065
• Ad-Hoc Ecosystem response
  • responded to MEXC support request
  • followed up with KeepKey for possible grant submission of theirs
  • One Key grant progress catch up
• Office Hours
  • RedDev office hours April 7, 14, 21, 28th
  • Zingo Labs standups 3 or 4 times a week
• Community and Ecosystem Events:
  • Attended April 1st, 15th, 22nd R&D meetings
  • Attended arborist call of April 16th and 30th
  • LCWG: there’s a meeting collision since DST changes that we need to sort out
  • Attended ZIP editors meeting April 7th, 14th and 21th
  • Attended Mark Henderson’s Office Hours