Phil Trinh trinh.uk
Phil Trinh

Phil Trinh

Founder, builder and global operator.

I build things and keep them running.

About

the short version

I co-run SenPrints, a print-on-demand SaaS platform, and Printik, a Houston-based supplier on the same stack — plus AloRide, motorcycle rental in Singapore.

Before going independent I was a software engineer at SIG and Grab.

These days I spend most of my time on business management, AI agent tooling, self-hosted infrastructure, family, and sports.

Based
Singapore
Before
Engineer at SIG & Grab
Studied
CS, Drexel · a few software patents
Member
Committee, Vietnam Blockchain Association

Business portfolio

4 companies
  1. since 2021

    SenPrints CFO & Co-founder

    Global print-on-demand platform — dev and ops team in Hanoi, incorporated in Singapore, with a worldwide supplier network.

  2. since 2024

    Printik LLC CFO & Co-founder

    Print-on-demand supplier based in Houston, TX, running on the same stack as SenPrints.

  3. since 2025

    SyncTrack Board of Directors

    A Shopify app for branded order tracking — a custom tracking page and order tracker that keep every shipping update in one place.

  4. since 2015

    AloRide Pte Ltd Founder

    Motorbike rental in Singapore — daily, weekly, and monthly bikes for work, delivery, and leisure.

Recent projects

things I’ve made
01

RelayKey

Remote administration for machines behind firewalls and NAT, with no backend server of ours. One command on the target machine and you have an end-to-end encrypted channel to it — a root shell, and TCP port forwarding so SSH and RDP reach it without a VPN or an inbound firewall rule. Peers find each other over public relays; the browser client needs nothing installed.

Windows · macOS · Linux · web Site →Web client →
02

Snippet Keyboard

A custom keyboard that does exactly one job: insert a snippet with one tap. No QWERTY, no autocorrect, no analytics — you keep your usual keyboard and switch over only when you need a canned reply, an address, or a URL fetched live at tap time. Under 50 ms per insert, under 30 MB of RAM.

Android · iOS in review Google Play →
03

Freeport

A decentralized peer-to-peer marketplace over Nostr. People broadcast trade intents into topic-scoped markets; personal agents discover matching intents and negotiate automatically, and humans confirm the final deal. No central operator, no matching server — relays are dumb pub/sub and all the logic runs client-side.

Nostr · P2P Demo →Landing →
04

Proxy Switchboard

A lightweight, multi-platform app that routes your traffic per destination — through SSH, SOCKS5, MITM, WireGuard, or Tor, all by simple hostname rules.

multi-platform Site →
05

ViệtTelex

A Vietnamese Telex input method for macOS: no underline while typing, and it works in Terminal and Chrome where other IMEs break. ~130 ns per keystroke, zero network. Minimalist, intuitive, performant.

macOS · open source Site →GitHub →
06

Notiful

A tiny, local-only macOS menu-bar app that pulls one-time passcodes — 2FA and verification codes — out of your notifications so you can copy them in one click, and optionally run a shell command on each code.

macOS · open source GitHub →
07

Final Notice

Generates professional debt-collection demand letters — a print-ready PDF with a formal letter and matching envelope, localized and legally formatted for 80+ jurisdictions and 29 languages.

Travels

places I’ve been · tap to open

Interests

in no particular order
  • Tennis
  • Swimming
  • Self-Hosted
  • Proxmox Clusters
  • eCommerce
  • P2P
  • AI Agents
  • Fund Management
  • Investing
  • Computer Science
  • Financial Markets
  • Fintech Regulatory
  • Geo-arbitrage