After Losing His Job, a Developer Built an AI Coding Agent That Made Coding Fun Again

Thursday: A SerenityOS for Myself

After his job vanished overnight, a developer chased the joy of building through a costly DeepSeek Harness project that never felt fun. Realizing he'd been treating code as the point rather than the pleasure of building, he turned the agent into a single skill file: Thursday, which keeps AI inference under $20 a month. He frames it as his own SerenityOS, a personal project to fix the industry's incentive misalignment.

I was treating the code as if it was the important part, but what I really wanted to experience again was the joy of building.

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2026-10-29