I build the parts of a system that have to be right, not just fast — workflow engines, async data layers, streaming pipelines, and the compilers and schedulers underneath them.

zigflow/zigflow: declarative YAML workflows on Temporal, with no SDK boilerplate. Zigflow compiles a workflow written in YAML (the CNCF Open Workflow Specification) into a full Temporal workflow, with retries, state management and deterministic execution. Teams get Temporal's durability without writing Go, Java or TypeScript workflow code. 🛠️ Maintainer since October 2026: reviewing PRs, keeping CI and dependencies healthy, and driving the road to v1.

Highlights

• #615: activity inputs resolved in the workflow. Every step now receives, and history records, the exact values the workflow computed, so a run can be debugged from its history alone.
• #623: unblocked the project's CI. A CVE in golang.org/x/net had failed the image scan on main and on every open PR for two days. The fix brought builds and image publishing back to green.
• #591: cancelling a workflow now stops it. A fork waits for its branches to be cancelled instead of returning while they keep running.

15 merged pull requests across 2 repositories, and 3 issues reported. Took part in 10 discussions. Reviewed 4 pull requests.

Latest merged:

• zigflow/zigflow#657: ci: run the pr review job on ubuntu-24.04 (2026-11-11)
• zigflow/zigflow#644: feat: add scheduleWorkflowType and deprecate scheduleWorkflowName (2026-11-09)
• zigflow/schema#22: feat: add scheduleWorkflowType and deprecate scheduleWorkflowName (2026-10-28)

Full record: CONTRIBUTIONS.md

• ⚙️ Workflow orchestration & durable execution — Temporal, compensation, state you can reason about a week later
• 🧩 Compilers & DSLs — graph traversal, lowering, validation, normalisation; the interesting bits are all edge cases
• ⚡ Async Python at the data layer — SQLAlchemy 2.0, connection lifecycle, migration discipline
• 🕐 Scheduling correctness — recurrence rules, occurrence generation, timezone-aware scheduling
• 🔐 Auth & access control — asymmetric JWT, centralised verification, RBAC that holds at the fifth service
• 🎥 Real-time media — RTSP, HLS, WebRTC, and the bandwidth arithmetic behind choosing between them
• 🔍 Observability of distributed work — tracing an execution back to the intent that produced it

Languages & Frameworks

Orchestration & Data

Infrastructure

Media & Protocols

• 🔭 Deep in workflow orchestration — compilers, durable execution, making failures legible
• 🐹 Learning Go properly, mostly by fixing things in a runtime written in it
• 🌍 Contributing upstream instead of carrying patches locally
• ✍️ Getting better at the non-code half — design ownership, root-cause analysis, and writing things down

🐍 Python backend & distributed systems · ⚙️ Workflow orchestration & Temporal · 🧩 Compilers, DSLs and developer tooling · 🌍 Open source