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Achievement: Starstruckx2Achievement: Pull Sharkx4Achievement: Pair Extraordinairex3Achievement: Quickdraw

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hmdsefi/README.md

Hamed Yousefi

Platform engineer at Polymarket, based in Dubai. I write Go, mostly distributed systems, blockchain infrastructure and LLM inference infrastructure.

Most of my day-to-day work is in private repositories, so my contribution graph shows more than the public activity below.

Now

  • faultline: deterministic simulation testing for Go. It runs a distributed system on a simulated network, disk and clock inside go test, injects faults like partitions, crashes and failed fsyncs, and replays any failing run exactly from its seed. v0.1.0 shipped on October 11. Next is v0.1.1 (hardening and agent plugin), due October 19.
  • gograph: v0.8.2 shipped on October 2. Next is v0.9.0, due October 19: Dependency graph toolkit. Contributions are welcome, and CONTRIBUTING.md explains where to start.
  • Upstream fixes in Go infrastructure projects, mostly race conditions, error handling and tests that had been switched off. The latest are listed below.

Recent upstream contributions

  • k8sgpt-ai/k8sgpt
    • fix: honor the namespace filter in the Gateway API analyzers (#1826)
    • fix: report failed results in Kyverno ClusterPolicyReports (#1832)
    • fix: accept an empty storageClassName in StatefulSet claim templates (#1830)
    • fix: keep webhook findings when configurations share a webhook name (#1827)
  • ethereum/hive
    • hivesim: return API errors from StopClient, PauseClient and UnpauseClient (#1616)
  • mark3labs/mcp-go
    • feat(server): limit the size of a tool result (#1048)
    • fix(transport): don't take SSE server requests as responses (#1085)
    • fix(server): serialize stdio session requests with other writes (#1084)
    • fix(mcp): let WithRawInputSchema replace the default input schema (#1082)
  • hyperledger/fabric
    • Wrap the Domain template error in the ccaas builder (#5621)

Plus 12 more in review.

All my merged pull requests to other projects

Projects

  • faultline: deterministic simulation testing for Go, with a simulated network, disk and clock and failures you can replay from a seed. Built for AI coding agents and people.
  • gograph: generic graph library for Go. Dependency graphs with cycle checks and topological order, traversal, shortest paths, connectivity and partitioning, with no dependencies.
  • gowl: worker pool for Go that also monitors the status of each process.
  • channelize: WebSocket framework for outbound streams, with several public and private channels on one connection.
  • staking: Ethereum staking backend on Lido, with Temporal workflows for staking, unstaking, rewards accounting and reconciliation.
  • athenz-agent: sidecar that wraps Athenz ZPE and ZPU, so services can use Athenz without extra code.
  • vault-eth-signer (contributor): HashiCorp Vault plugin that signs with secp256k1 keys, so Vault works as a software HSM for Ethereum.

Sponsoring

If gograph or my other projects save you time, you can support my open source work through GitHub Sponsors.

Sponsor my work

Contact

LinkedIn

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  1. gograph gograph Public

    Generic graph data structures and algorithms for Go (Golang): dependency graphs (DAGs) with cycle checks and topological sort, BFS and DFS traversal, Dijkstra and other shortest paths, connectivity…

    Go 136 26

  2. faultline faultline Public

    Deterministic simulation testing (DST) for Go: run a distributed system on a simulated network, disk and clock inside go test, inject faults like partitions, crashes and failed fsyncs, and replay a…

    Go 3

  3. gowl gowl Public

    Gowl is a process management and process monitoring tool at once. An infinite worker pool gives you the ability to control the pool and processes and monitor their status.

    Go 71 9

  4. channelize channelize Public

    A websocket framework to manage outbound streams. Allowing to have multiple channels per connection that includes public and private channels.

    Go 26 5

  5. staking staking Public

    Staking backend for Ethereum using Lido, built as microservices with Temporal workflows for stake/unstake orchestration, rewards accounting, reconciliation, and secure transaction relaying.

    Go 2

  6. athenz-agent athenz-agent Public

    Athenz-Agent is a sidecar agent that wraps both ZPE and ZPU to facilitate development. It helps developers to concentrate on their software and use Athenz service with ease.

    Go 11