{"version":"1.0","type":"card","id":"8cf6681e-e969-4a2e-872f-b8431800a2d1","url":"https://stacklist.com/card/8cf6681e-e969-4a2e-872f-b8431800a2d1","title":"Real-Time Marketplace Playbook with Erik Chelstad","source_url":"https://www.codestory.co/episodes/s4-bonus-the-real-time-marketplace-playbook-engineering-geospatial-crowd-ingestion-with-erik-chelstad/","note":"Discover how Erik Chelstad built Observa's real-time geospatial marketplace platform. Learn the engineering insights behind crowd-powered data ingestion.","image":{"url":"https://ucarecdn.com/62f87514-b8ab-4743-a084-782790a1ac5c/","alt":"Real-Time Marketplace Playbook with Erik Chelstad","width":1400,"height":1400},"stack":{"id":"fec60e9c-742b-444c-add8-c9302a96c479","title":"Code Story Podcast: Season 4 Founder Interviews","url":"https://stacklist.com/c/podcast/stack/fec60e9c-742b-444c-add8-c9302a96c479"},"created_at":"2026-08-13T21:15:52.608Z","updated_at":null,"aco":{"summary":"Code Story podcast features Erik Chelstad discussing the creation of Observa, a real-time marketplace born from his experience running bakeries and needing visibility into product distribution at locations he didn't control. The episode covers his journey from identifying the problem to engineering a geospatial crowd ingestion platform powered by cell phones and centralized data consumption.","tags":["startup","podcast","geospatial","marketplace","technical-founder","real-time","entrepreneurship"],"key_entities":[{"name":"Erik Chelstad","type":"person","confidence":0.99},{"name":"Noah Labhart","type":"person","confidence":0.95},{"name":"Observa","type":"organization","confidence":0.97},{"name":"Code Story","type":"organization","confidence":0.95},{"name":"geospatial crowd ingestion","type":"concept","confidence":0.9},{"name":"real-time marketplace","type":"concept","confidence":0.9},{"name":"Pacific Northwest","type":"location","confidence":0.92},{"name":"Mt. Rainier","type":"location","confidence":0.88},{"name":"RedCircle","type":"organization","confidence":0.8},{"name":"Squadcast","type":"technology","confidence":0.75},{"name":"Acton Children's Business Fair","type":"organization","confidence":0.7}],"classification":"transcript","language":"en","confidence":0.85,"provenance":{"model":"claude-opus-4-6","tool":"@stacklist/mcp-server@2.0.0","confidence":0.85,"timestamp":"2026-08-13T21:15:48.978Z"},"token_counts":{"approximate":639,"cl100k":556},"content_hash":"sha256:f8c5330fbcb577f77768c243abbc56ae1062acd7bc12e0dcd6af55ae79a9f312","acp_version":"0.2","body_available":true,"body_tokens":639,"visibility":"public","agent_accessible":true,"status":"final"},"_links":{"self":"/api/public/card/8cf6681e-e969-4a2e-872f-b8431800a2d1.json","html":"https://stacklist.com/card/8cf6681e-e969-4a2e-872f-b8431800a2d1","md":"/api/public/card/8cf6681e-e969-4a2e-872f-b8431800a2d1.md","stack_json":"/api/public/stack/fec60e9c-742b-444c-add8-c9302a96c479.json"}}