Quoting Jeremy Morrell
- ID
- 15818
- Status
- summarized
- Published
- 20 Aug 2026, 6:56 AM
- Fetched
- 20 Aug 2026, 7:09 AM
- Provider
- Simon Willison
- Category
- developer-ai
- Original URL
- https://simonwillison.net/2026/Aug/19/jeremy-morrell/
- Source URL
- https://simonwillison.net/atom/everything/
Summary
- Score
- 7.0
- Created
- 20 Aug 2026, 7:10 AM
- Tags
- Audience
- developersvibe_coderssaas_foundersai_agent_users
What happened
Jeremy Morrell argues that LLMs create a new opportunity for 'Extensible Software' on the web: LLMs radically lower the cost of authoring extensions while modern sandbox primitives lower deployment cost and provide security boundaries. The proposed architecture is a solid, accountable core that users can safely extend in many directions by having LLMs fill in missing pieces.
Why it matters
If you build SaaS or internal tools, this suggests a concrete design pattern: ship a minimal accountable core and expose safe extension points where LLM-generated code runs in a sandbox, rather than building every integration or customization yourself. This could reduce your feature backlog and let users self-serve niche workflows.
Discussion angle
What does the 'solid, accountable core + LLM-filled extensions' split look like in practice for a typical Malaysian SaaS — which parts do you harden, and which do you hand to LLM-generated code in a sandbox?