Effectifying OpenCode #8

Get support from the Effect community

Kit Langton joins the podcast to talk about Effect, OpenCode, and what it takes to migrate a large TypeScript codebase to Effect. Enjoy a very Kit episode, technical, funny, opinionated, and full of love for effect systems.

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Mentioned in the video:

- effect.solutions

- effect.institute

- hex.kitlangton.com

Effect is an ecosystem of tools to build production-grade software in TypeScript.

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#Effect #TypeScript #OpenCode #softwareDevelopment

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• (00:00) - Episode highlight: why effect systems matter
• (00:43) - Meet Kit Langton
• (03:49) - Effect Institute, Visual Effect, and interactive learning
• (13:15) - Bringing Effect into OpenCode
• (19:18) - Schema, branded IDs, and safer types
• (27:35) - Effect services, layers, and architecture
• (32:28) - Testing LLM workflows with Effect
• (46:24) - Incremental adoption in a real TypeScript codebase
• (50:44) - effect.solutions and agent-ready patterns
• (01:00:36) - Layers, dependencies, observability, and telemetry
• (01:16:58) - AI-first coding workflows
• (01:34:35) - Using Effect v4 in OpenCode
• (01:36:56) - What’s next for OpenCode
• (01:42:33) - Closing thoughts