Oliver Nguyen

Former founder with 7 years in software development. My latest project is OneSidebar, a browser extension for navigating GitHub. Work mostly with Go and JavaScript as a full-stack guy, built a system from ground up on Kubernetes (GKE), released a few open source libraries. Occasionally tech writer and speaker.

Connect with me on , , , and (olvrng@gmail.com) .

Writing

2026-04-17
Working with Stacked PRs using jj
2025-12-23
Game theory: A quick introduction
2024-12-31
Commit your code in style with git.emoji 🎉
2024-12-26
The power of diff in testing - Part 1: SQL queries and mocks
2024-12-20
ezpkg.io/conveyz: Understanding the Implementation of FConvey
2024-12-12
iter.json: A Powerful and Efficient Way to Iterate and Manipulate JSON in Go
2024-12-06
Errors, Errors Everywhere: How We Centralized and Structured Error Handling
2024-10-20
Implement a Distributed State Machine with Redis to Migrate Billions of Records
2024-07-24
Upgrade your scripts using 'direnv' and 'run' script
2024-07-02
Refactor: GoroutineTracker with unnecessary usage of reflect
2024-06-26
ezpkg.io - Collection of packages to make writing Go code easier
2023-09-28
GitHub PRs on MacOS Menu Bar
2023-08-10
Building flow compiler for sending campaigns and auto reply
2023-03-20
Pull data from HackerNews API and dump to JSON files
2023-03-15
Visualize flow documents and ETA flow descriptors
2023-02-19
Working with Stacked PRs using git-branchless, git-autofixup, and git-pr
2022-12-25
Make goconvey work with gomega assertion
2022-12-20
Make sapling work with direnv
2022-12-16
My first impressions of Sapling — Meta’s new Git client
2022-12-01
The Immune System: What happens when you get a small cut?
2022-09-15
Latest JavaScript features in 2022
2022-03-29
Compare and swap in Redis
2022-03-01
Validate zero enum value in Protocol Buffer
2022-02-22
Eventual consistency and cache
2022-01-22
Create an emoji ball-drop game with Matter.js
2021-02-02
Front-End development without node_modules using Skypack and Snowpack
2021-01-09
µjson - A minimal JSON parser and transformer in Go

Little Experiments

jj.zsh
zsh helpers for jj: stacked PRs, syncing all stacks at once, and parallel workspaces
darker pages
A Tampermonkey userscript that dims too-bright web pages, with brightness hotkeys
github.swiftbar
Monitor GitHub PRs status in MacOS menu bar
hackernews-dump
Pull data from HackerNews API and dump to JSON files
git-pr
Quickly create many GitHub pull requests for stacked commits workflow
chatgpt-box
A browser extension to open ChatGPT as a sidebar
OneSidebar
The missing navigator of GitHub (browser extension)
µjson
A minimal JSON parser and transformer in Go
espkg
Transpile Node packages to ES Module, powered by esinstall
tomato
Pomodoro app for running in MacBook touchbar
mithril-ui
A Bootstrap-based UI for Mithril.js framework
min-require
Minimal implementation of CommonJS require API

Speaking

2016
The fundamental problems of GUI applications and why people choose React
2016
Concurrency in Go: goroutine, channel, mutex and race
2016
Building an offline and real-time editing service with Couchbase
2016
What do people say when they switch to Go?
2015
To Go or not to Go? Life is short. Just Go!
2015
Modern Web Development in 2015: The current state of web development
2014
Isomorphic Web Application: Running JS on both server and client

With team

2021-now
Connectly.ai
Connectly simplify how you talk to your customers across WhatsApp, SMS, Facebook Messenger and Instagram. I work on the backend with occasionally touching the frontend. Build the system with TypeScript, Go, Postgres, Kubernetes on AWS. Remote.
2017-2020
eTop.vn
TopShip.vn
A collection of tools for retailers to manage orders, customers, inventory, shipments, etc. (web and mobile apps). I’m the technical co-founder, lead a team of 10 developers. Built the system from ground up with Go, Postgres, Kubernetes on Google Cloud.
2016-2017
Payfriendz
Free payment app that makes payments with friends simple and free. I’m a team leader, backend developer. Remote (Go).
2014
Glass Earth
NASA Space App Challenge, first prize in HCM (hologram, unity). Team leader.
2014
Social Map
Social Map won top prize and received funding from Internews. Co-lead.
2012
Chaos of Liti's
Nokia Create For Millions, prize in Game category (game, j2me). Team leader.