Welcome

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(https://rundecker.com) helps AI builders run and manage local projects without fighting the terminal.
• Halden(https://gethalden.com) helps builders protect API keys before they leak into code, git history, AI context, or deployment.
• Holt(https://writeholt.com) is a local-first writing app for private notes, trusted sharing, and web publishing.
• Temper(https://temper-domains.vercel.app) helps builders find available domains without leaving their AI workflow.
• Siggu(https://siggu.xyz) is a Discord-based build space for people who want to keep creating without doing it alone.