{"type":"post","id":"aws-has-an-official-local-emulator-for-testing-95fa93","slug":"aws-has-an-official-local-emulator-for-testing-95fa93","title":"AWS has an official local emulator for testing against local clones of its services","description":"AWS has an official local emulator for testing against local clones of its services, according to Simon Willison’s account of the project.","retrieval_nugget":"AWS has an official local emulator for testing against local clones of its services, according to Simon Willison’s account of the project. The immediate appeal is avoiding paid API keys during tests; the practical boundary is that the emulator currently requires Docker and runs on macOS or Windows. Its service coverage and fidelity are not established here.","published_at":"2026-11-12","updated_at":"2026-11-12","record_date":"2026-11-12","date_kind":"published_at","topics":["developer-tools"],"entities":["Amazon Web Services","aws-emulator","Swaminathan Sivasubramanian","Werner Vogels"],"related_patterns":[],"novelty_label":"new_fact","what_changed":null,"prior_refs":[],"source_url":"https://simonwillison.net/2026/Nov/11/aws-emulator","source_urls":["https://simonwillison.net/2026/Nov/11/aws-emulator"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:aws-has-an-official-local-emulator-for-testing-95fa93","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/aws-has-an-official-local-emulator-for-testing-95fa93/","markdown":"https://newruntime.com/posts/aws-has-an-official-local-emulator-for-testing-95fa93.md","json":"https://newruntime.com/posts/aws-has-an-official-local-emulator-for-testing-95fa93.json"},"markdown_url":"https://newruntime.com/posts/aws-has-an-official-local-emulator-for-testing-95fa93.md","next_reads":[{"type":"topic","path":"/topics/developer-tools/","url":"https://newruntime.com/topics/developer-tools/","title":"Developer Tools","reason":"Explore the developer-tools topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/developer-tools.md","json_url":"https://newruntime.com/topics/developer-tools.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/sources/","url":"https://newruntime.com/sources/","title":"Sources","reason":"See the original sources this archive cites.","media_type":"text/html"}]}