Nice to meet you. How have you been?
I’m Jongjin Choi, a Forbes-featured founder building tools and spaces for people creating with AI.
Work
Decker helps non-developers run and manage multiple AI-built projects without fighting the terminal.
Decker — Working local previews for AI-built apps.See the working local URL, server status, logs, and share link for AI-built apps without chasing ports or terminals.
rundecker.com Halden helps builders protect API keys before they leak into code, git history, AI context, or deployment.
Halden — Catch exposed API keys before you publishCheck your AI-built app before it reaches GitHub. Halden finds exposed API keys, risky env files, git history issues, AI tool context, and synced folders locally.
gethalden.com Holt is a local-first writing app for private notes, trusted sharing, and web publishing.
Holt - Your writing starts on your computerWrite in local Markdown files, prepare posts separately, and share or publish only what you choose.
writeholt.com Temper helps builders find available domains without leaving their AI workflow.
Siggu is a Discord-based build space for people who want to keep creating without doing it alone.
Siggu — A Discord Build Space for Builders Working AloneA Discord Build Space for people making things on their own, with a place to return and people alongside the work.
siggu.xyz 