Vyncint Ng

Rust systems developer · GPU tooling · terminal testing infrastructure · Kubernetes · Go

Creator of termlens · #3 contributor to NVIDIA/cuda-rust (cuda-oxide) · #7 contributor to kube-logging/logging-operator

I build Rust tools for testing terminal applications and analysing GPU kernels, and I work on Kubernetes operators and sandboxed agent runtimes. Most of my contributions are testing infrastructure and CI: making a tool's claims checkable, and catching the places where its documentation and its code disagree.

Projects

Six Rust products on crates.io. termlens tests the other five end to end: it runs each real binary in a pseudo-terminal and asserts on the rendered screen.

Testing

termlens

Headless end-to-end testing for CLI and TUI apps: real PTYs, rendered-screen assertions, snapshots, screen diffs. The end-to-end example in Ratatui's snapshot-testing recipe.

GPU · static analysis

reconverge

Static analysis for Rust GPU kernels: divergent barriers and warp-collective hazards, explained lane by lane. No GPU required.

GPU · autotuning

launchbound

Autotuning for GPU kernels: a convergence check per configuration, CUDA and Metal benchmarking, analytical estimates.

Deep learning

oxmera

Tensor and deep-learning framework: autograd, CPU, Metal and CUDA backends, a terminal training dashboard.

Data

oxidelake

Arrow-native SQL engine on DataFusion or Ballista, with optional GPU acceleration and per-batch CPU fallback.

Terminal

mossaic

Plan, draw and track GitHub contribution art, with pixel-rendered graphs in the terminal.

Go · sandboxes

openshell-driver-applecontainer

A compute driver for NVIDIA OpenShell backed by apple/container: one micro-VM per sandbox on Apple silicon, roughly one second to Ready.

Upstream

Project	Contribution
NVIDIA/cuda-rust NVIDIA's CUDA platform for Rust, home of the cuda-oxide compiler (formerly NVlabs/cuda-oxide)	171 merged pull requests, third of 94 contributors. Mostly documentation that had drifted from the code and CI gates that could not fail, plus compiler fixes such as carrying proved alignment through a field store.
kube-logging/logging-operator Kubernetes logging operator	33 merged pull requests, seventh of 149 contributors. Rebuilt the end-to-end suite on one shared harness with time-bounded kind calls; operator fixes for dual-stack Fluent Bit metrics, custom CAs on S3 outputs and dnsPolicy on the configcheck pod.
calfonso/rusternetes Kubernetes reimplemented in Rust	10 merged pull requests, sixth of 15 contributors. Correctness fixes across the control plane: typed container-state timestamps, negated field selectors on watch endpoints, fractional and binary-SI resource quantities in the scheduler, CronJob day-of-week numbering.
apple/containerization Linux containers on macOS	Redact environment-variable values in `vminitd` debug logs; consistent CIDR bounds for IPv4 and IPv6.
GoogleCloudPlatform/gcsfuse Cloud Storage as a file system	Report a symlink's size as the length of its target.
NVIDIA/OpenShell Runtime for autonomous agents	Show persisted guidance on rejected policy chunks in the TUI.
NVIDIA/NemoClaw Agents inside OpenShell	Supply the Ultra template argument from the managed resolver.

How I work

Evidence over assertion

A bug report states what was measured, against which released version.

A check must be seen to fail

Every new CI check is broken on purpose once, to prove it can fail, before it is trusted.

Say what you did not do

A pull request lists what it left out and why. A known gap is cheap; a false claim is expensive.

AI-assisted, human-owned

I use AI tools in development and take responsibility for reviewing, testing and maintaining the results.

Contact

Open to collaboration on Rust tooling, GPU infrastructure, Kubernetes operators and testing. Open an issue or discussion on any repository above, or find me at github.com/vyncint.