{"podcast":{"title":"The CTO Podcast with Fexingo: Technical Leadership, Architecture, and Engineering Org","slug":"the-cto-podcast-with-fexingo-technical-leadership-architecture-and-engineering-org-7871807","podcast_index_feed_id":7871807,"rss_url":"https://feeds.fexingo.com/business/the-cto-podcast.xml","website_url":"https://www.fexingo.com/","image_url":"https://audio.fexingo.com/business/the-cto-podcast/cover.png","author":"Fexingo","episode_count":76,"summary":"Lucas and Luna sit down in front of a whiteboard to dissect the decisions that shape technical organizations. Each episode of The CTO Podcast with Fexingo examines a specific engineering leadership challenge — from scaling a microservices architecture without creating a distributed monolith, to managing the cognitive load of a 200-engineer org, to choosing between a monorepo and polyrepo strategy based on team topology. The conversations are grounded in real-world cases: how Etsy restructured its data pipeline after a 2019 outage, why Stripe’s API versioning policy reduces breaking changes, or what Basecamp’s choice of SQLite over PostgreSQL says about product philosophy. Lucas brings the journalistic rigor — citing commit histories, RFCs, and postmortems — while Luna pushes back with the pragmatics of org dynamics, hiring constraints, and technical debt. There are no hot takes, no vendor pitches, no ‘best practices’ without trade-offs. Each episode ends with a specific tension left unresolved: the optimal number of direct reports for a VP of Engineering, the point at which a monolith should be broken apart, or whether a platform team should own the CI/CD pipeline. The listener is…","last_synced_at":"2026-06-27T14:18:24.326804+00:00","page_url":"https://stenobird.com/podcast/the-cto-podcast-with-fexingo-technical-leadership-architecture-and-engineering-org-7871807"},"episode":{"title":"How Supabase Rebuilt Postgres for Real-Time Apps","slug":"how-supabase-rebuilt-postgres-for-real-time-apps","published_at":"2026-06-15T07:11:18+00:00","page_url":"https://stenobird.com/podcast/the-cto-podcast-with-fexingo-technical-leadership-architecture-and-engineering-org-7871807/how-supabase-rebuilt-postgres-for-real-time-apps","show_page_url":"https://stenobird.com/podcast/the-cto-podcast-with-fexingo-technical-leadership-architecture-and-engineering-org-7871807","url":"https://audio.fexingo.com/business/the-cto-podcast/episode-0052.mp3","audio_url":"https://audio.fexingo.com/business/the-cto-podcast/episode-0052.mp3","summary":"In this episode, Lucas and Luna explore how Supabase, an open-source Firebase alternative, built a real-time layer on top of PostgreSQL that handles millions of concurrent WebSocket connections. They break down the architecture behind Supabase's Realtime server, which uses PostgreSQL's logical replication and Elixir's BEAM VM to stream database changes to client applications with sub-second latency. Lucas explains why the team chose to fork PostgreSQL's replication slot mechanism and how they handle backpressure when clients fall behind. Luna questions the trade-offs of using WebSockets versus server-sent events for real-time data synchronization. The conversation also touches on Supabase's decision to build on AWS's Graviton processors to reduce costs and how the company scaled from zero to over 200,000 users without a dedicated infrastructure team. If you're building a real-time application or just curious about modern database architecture, this episode offers concrete insights into one of the most exciting open-source projects in the cloud space. #Supabase #PostgreSQL #RealTime #WebSockets #Elixir #BEAM #Database #Backend #Architecture #OpenSource #FirebaseAlternative #LogicalReplication #AWS #Graviton #Scalability #BusinessAndTechnology #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo","meta_description":"In this episode, Lucas and Luna explore how Supabase, an open-source Firebase alternative, built a real-time layer on top of PostgreSQL that handles milli…","key_points":[],"chapters":[],"topics":[],"duration_seconds":634,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/the-cto-podcast-with-fexingo-technical-leadership-architecture-and-engineering-org-7871807/episodes/how-supabase-rebuilt-postgres-for-real-time-apps/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/the-cto-podcast-with-fexingo-technical-leadership-architecture-and-engineering-org-7871807/how-supabase-rebuilt-postgres-for-real-time-apps.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}