{"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 GitHub Actually Migrated 100 Million Repos to a New Storage Engine","slug":"how-github-actually-migrated-100-million-repos-to-a-new-storage-engine","published_at":"2026-06-21T19:54:36+00:00","page_url":"https://stenobird.com/podcast/the-cto-podcast-with-fexingo-technical-leadership-architecture-and-engineering-org-7871807/how-github-actually-migrated-100-million-repos-to-a-new-storage-engine","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-0065.mp3","audio_url":"https://audio.fexingo.com/business/the-cto-podcast/episode-0065.mp3","summary":"In 2024, GitHub faced an impossible problem: its 15-year-old storage backend, built on bare Git repositories, couldn't keep up with 100 million active repos, AI-generated commits, and terabyte-scale monorepos. This episode drills into how GitHub's engineering team designed and rolled out a custom storage engine called 'GitHub Storage Service' (GSS) without a single user-facing outage. We cover the fundamental shift from POSIX filesystem assumptions to object-storage-native Git, the two-year phased migration that touched every push and clone request, and the surprising performance win: 40% faster clone times for large repos. Lucas and Luna also discuss the trade-off between backward compatibility and architectural purity — and why GitHub chose to keep the Git protocol unchanged even as they ripped out the entire storage layer underneath. #GitHub #StorageEngine #Git #Infrastructure #Migration #ObjectStorage #Engineering #CTO #TechnicalLeadership #Architecture #Scalability #Monorepo #AI #BackwardCompatibility #Performance #Business #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo","meta_description":"In 2024, GitHub faced an impossible problem: its 15-year-old storage backend, built on bare Git repositories, couldn't keep up with 100 million active rep…","key_points":[],"chapters":[],"topics":[],"duration_seconds":565,"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-github-actually-migrated-100-million-repos-to-a-new-storage-engine/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-github-actually-migrated-100-million-repos-to-a-new-storage-engine.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}