{"slug": "celld", "name": "celld", "category": "infra", "category_name": "Infrastructure and DevOps", "description": "", "recommenders": 6, "commenters": 9, "warners": 1, "score": 4.712, "rising": 6.0, "first": "2026-08-05", "latest": "2026-10-09", "why": "with a known good open source history. Durable writes there are as low as 1ms.", "why_is_quote": true, "has_verdict": false, "sentiment": {"recommend": 6, "neutral": 2, "compare": 1, "warn": 1}, "spark": [0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 5], "listed": true, "loved": [], "caveat": "", "short_quote": "with a known good open source history. Durable writes there are as low as 1ms.", "kind": "", "icon": true, "domain": null, "github_repo": "github.com/denoland/celld", "official_url": "https://github.com/denoland/celld", "pricing": "", "aliases": ["celld", "Celld"], "verdict": null, "praise": [{"label": "", "summary": "", "quotes": [{"id": 800350176, "item_id": 50021886, "url": "https://news.ycombinator.com/item?id=50021886", "by": "jauntywundrkind", "date": "2026-10-09", "stance": "recommend", "quote": "Hopefully not to stop celld", "excerpt": "Hopefully not to stop celld, the cloudflare Durable Object compatible impl. https://github.com/denoland/celld https://news.ycombinator.com/item?id=49185430 Phrased as it being merged into the existing, but I can't help but fret a bit. Is cloudflare willing to let their own core compute product be something available to the world? Absolutely sick wins if so. But I worry celld pretty reasonably seen as a threat.", "context": "", "use_case": "Durable Object compatible runtime", "switched_from": "", "story": "Cloudflare acquires Deno"}, {"id": 799940880, "item_id": 49996305, "url": "https://news.ycombinator.com/item?id=49996305", "by": "anilgulecha", "date": "2026-10-07", "stance": "recommend", "quote": "with a known good open source history. Durable writes there are as low as 1ms.", "excerpt": "100ms for a write - not usable for anything beyond toys. I mean we have https://github.com/denoland/celld - with a known good open source history. Durable writes there are as low as 1ms.", "context": "", "use_case": "durable actor writes", "switched_from": "", "story": "Show HN: Durable Actors \u2013 OSS Durable Objects with configurable compute"}, {"id": 799718368, "item_id": 49982398, "url": "https://news.ycombinator.com/item?id=49982398", "by": "stillpointlab", "date": "2026-10-06", "stance": "recommend", "quote": "celld is very interesting", "excerpt": "celld is very interesting and I've been following Dahl's posts on X about it. But it is not related directly to deno. The celld repo [1] for example suggests that it is 78.5% Rust. It is much more of a side-quest and it doesn't answer the question: where is deno going? 1. https://github.com/denoland/celld", "context": "", "use_case": "", "switched_from": "", "story": "Friendship ended with Deno, now Node is my best friend"}, {"id": 799500993, "item_id": 49968812, "url": "https://news.ycombinator.com/item?id=49968812", "by": "patcon", "date": "2026-10-05", "stance": "recommend", "quote": "celld is seeing a rush of building around it", "excerpt": "> nothing like durable objects (with containers no less) really exists in other clouds fwiw, celld is seeing a rush of building around it: https://celld.dev/ https://tlockney.github.io/celld-book/ https://noite.now/ https://github.com/kentcdodds/kody-celld https://celld-operator.io/ https://ewhauser.github.io/celld-operator/", "context": "", "use_case": "", "switched_from": "", "story": "Pi Durable"}, {"id": 799319504, "item_id": 49957469, "url": "https://news.ycombinator.com/item?id=49957469", "by": "mackross", "date": "2026-10-04", "stance": "recommend", "quote": "This thread doesn\u2019t seem to know about https://celld.dev.", "excerpt": "This thread doesn\u2019t seem to know about https://celld.dev. There is a far less lock-in to CF than there once was.", "context": "", "use_case": "", "switched_from": "", "story": "We want you to build the next Git platform on Cloudflare"}]}], "caveats": [{"label": "", "summary": "", "quotes": [{"id": 787289888, "item_id": 49205618, "url": "https://news.ycombinator.com/item?id=49205618", "by": "somerandom1", "date": "2026-08-06", "stance": "warn", "quote": "I'm skeptical this actually holds at the point where data is written to storage", "excerpt": "Seeing something like this reminds me of Kleppmann's blog post: https://martin.kleppmann.com/2016/02/08/how-to-do-distributed-locking.html. celld's README states \"Object-storage compare-and-swap ensures that exactly one node owns a cell at a time,\" but I'm skeptical this actually holds at the point where data is written to storage - I had an AI skim through the code with me, and the actual segment writes looked like ", "context": "", "use_case": "", "switched_from": "", "story": "Celld: Self-hosted, distributed Durable Objects"}]}], "who": [], "tags": [], "use_cases": ["durable object compatible runtime", "actor-based infrastructure", "durable actor writes", "consolidating small tools' state on s3", "self-hosted durable objects"], "compared": [{"slug": "cloudflare-r2", "name": "Cloudflare R2", "co": 1, "switched_from": 1, "switched_to": 0}, {"slug": "durable-objects", "name": "Durable Objects", "co": 2, "switched_from": 0, "switched_to": 0}, {"slug": "workerd", "name": "workerd", "co": 2, "switched_from": 0, "switched_to": 0}], "makers": [{"id": 800323201, "item_id": 50020200, "url": "https://news.ycombinator.com/item?id=50020200", "by": "kentonv", "date": "2026-10-09", "stance": "neutral", "quote": "merging celld with workerd", "excerpt": "Please be sure to read the post on Cloudflare's blog, it's not just fluff: https://blog.cloudflare.com/deno-joins-cloudflare/ TL;DR: Ryan and co. will be merging celld with workerd to create one first-class open source self-hostable runtime for Workers and Durable Objects. In the post I explain in the post why, contrary to what you might think, this is good business for Cloudflare and we're very excited about it.", "context": "", "use_case": "", "switched_from": "", "story": "Cloudflare acquires Deno"}], "threads": [{"url": "https://news.ycombinator.com/item?id=49185430", "title": "Celld: Self-hosted, distributed Durable Objects", "mentions": 3}, {"url": "https://news.ycombinator.com/item?id=50019911", "title": "Cloudflare acquires Deno", "mentions": 2}, {"url": "https://news.ycombinator.com/item?id=49980399", "title": "Show HN: Durable Actors \u2013 OSS Durable Objects with configurable compute", "mentions": 2}, {"url": "https://news.ycombinator.com/item?id=49971719", "title": "Friendship ended with Deno, now Node is my best friend", "mentions": 2}, {"url": "https://news.ycombinator.com/item?id=49709381", "title": "Alternatives to MinIO for single-node local S3", "mentions": 2}, {"url": "https://news.ycombinator.com/item?id=49925969", "title": "Pi Durable", "mentions": 1}], "sentiment_by_month": {"2025-11": {}, "2025-12": {}, "2026-01": {}, "2026-02": {}, "2026-03": {}, "2026-04": {}, "2026-05": {}, "2026-06": {}, "2026-07": {}, "2026-08": {"compare": 1, "warn": 1, "recommend": 1, "neutral": 1}, "2026-09": {"neutral": 1}, "2026-10": {"recommend": 5}}, "quotes": [{"id": 800350176, "item_id": 50021886, "url": "https://news.ycombinator.com/item?id=50021886", "by": "jauntywundrkind", "date": "2026-10-09", "stance": "recommend", "quote": "Hopefully not to stop celld", "excerpt": "Hopefully not to stop celld, the cloudflare Durable Object compatible impl. https://github.com/denoland/celld https://news.ycombinator.com/item?id=49185430 Phrased as it being merged into the existing, but I can't help but fret a bit. Is cloudflare willing to let their own core compute product be something available to the world? Absolutely sick wins if so. But I worry celld pretty reasonably seen as a threat.", "context": "", "use_case": "Durable Object compatible runtime", "switched_from": "", "story": "Cloudflare acquires Deno"}, {"id": 800003344, "item_id": 50000209, "url": "https://news.ycombinator.com/item?id=50000209", "by": "patcon", "date": "2026-10-07", "stance": "compare", "quote": "can you compare/contrast this to cell.dev?", "excerpt": "Love actor-based infra! can you compare/contrast this to cell.dev? https://celld.dev/ https://tlockney.github.io/celld-book/ https://noite.now/ https://github.com/kentcdodds/kody-celld https://celld-operator.io/ https://ewhauser.github.io/celld-operator/", "context": "", "use_case": "actor-based infrastructure", "switched_from": "", "story": "Show HN: Durable Actors \u2013 OSS Durable Objects with configurable compute"}, {"id": 799940880, "item_id": 49996305, "url": "https://news.ycombinator.com/item?id=49996305", "by": "anilgulecha", "date": "2026-10-07", "stance": "recommend", "quote": "with a known good open source history. Durable writes there are as low as 1ms.", "excerpt": "100ms for a write - not usable for anything beyond toys. I mean we have https://github.com/denoland/celld - with a known good open source history. Durable writes there are as low as 1ms.", "context": "", "use_case": "durable actor writes", "switched_from": "", "story": "Show HN: Durable Actors \u2013 OSS Durable Objects with configurable compute"}, {"id": 799718368, "item_id": 49982398, "url": "https://news.ycombinator.com/item?id=49982398", "by": "stillpointlab", "date": "2026-10-06", "stance": "recommend", "quote": "celld is very interesting", "excerpt": "celld is very interesting and I've been following Dahl's posts on X about it. But it is not related directly to deno. The celld repo [1] for example suggests that it is 78.5% Rust. It is much more of a side-quest and it doesn't answer the question: where is deno going? 1. https://github.com/denoland/celld", "context": "", "use_case": "", "switched_from": "", "story": "Friendship ended with Deno, now Node is my best friend"}, {"id": 799709697, "item_id": 49981856, "url": "https://news.ycombinator.com/item?id=49981856", "by": "patcon", "date": "2026-10-06", "stance": "neutral", "quote": "lots of activity around https://celld.dev the last few months", "excerpt": "I dunno, lots of activity around https://celld.dev the last few months. Deno team has been high on my radar more than ever since I discovered it: https://x.com/rough__sea/status/2105853283617440032 https://youtu.be/G-v1hkQ8Sf8 https://github.com/stars/patcon/lists/awesome-celld I get the sense that they'd just been brewing things around durable objects, and I'm excited for it coming to fruition", "context": "", "use_case": "", "switched_from": "", "story": "Friendship ended with Deno, now Node is my best friend"}, {"id": 799500993, "item_id": 49968812, "url": "https://news.ycombinator.com/item?id=49968812", "by": "patcon", "date": "2026-10-05", "stance": "recommend", "quote": "celld is seeing a rush of building around it", "excerpt": "> nothing like durable objects (with containers no less) really exists in other clouds fwiw, celld is seeing a rush of building around it: https://celld.dev/ https://tlockney.github.io/celld-book/ https://noite.now/ https://github.com/kentcdodds/kody-celld https://celld-operator.io/ https://ewhauser.github.io/celld-operator/", "context": "", "use_case": "", "switched_from": "", "story": "Pi Durable"}, {"id": 799319504, "item_id": 49957469, "url": "https://news.ycombinator.com/item?id=49957469", "by": "mackross", "date": "2026-10-04", "stance": "recommend", "quote": "This thread doesn\u2019t seem to know about https://celld.dev.", "excerpt": "This thread doesn\u2019t seem to know about https://celld.dev. There is a far less lock-in to CF than there once was.", "context": "", "use_case": "", "switched_from": "", "story": "We want you to build the next Git platform on Cloudflare"}, {"id": 795489328, "item_id": 49718083, "url": "https://news.ycombinator.com/item?id=49718083", "by": "hedgehog", "date": "2026-09-15", "stance": "neutral", "quote": "documented along side the replication and failover behavior here", "excerpt": "Ah! Thanks. For anyone else following this is documented along side the replication and failover behavior here: https://celld.dev/docs/guarantees/", "context": "", "use_case": "", "switched_from": "", "story": "Alternatives to MinIO for single-node local S3"}, {"id": 795438880, "item_id": 49714930, "url": "https://news.ycombinator.com/item?id=49714930", "by": "hedgehog", "date": "2026-09-15", "stance": "neutral", "quote": "After reading about celld's Litestream + locking on S3 approach", "excerpt": "Does anyone here have experience using some of the newer S3 family API features like locking with any of the self-hostable options? After reading about celld's Litestream + locking on S3 approach (https://github.com/denoland/celld) I got curious about that style of deployment as a way to consolidate small tools so their state is just centralize S3 buckets, but from a bit of reading support for the features like locki", "context": "", "use_case": "consolidating small tools' state on S3", "switched_from": "", "story": "Alternatives to MinIO for single-node local S3"}, {"id": 790792562, "item_id": 49424535, "url": "https://news.ycombinator.com/item?id=49424535", "by": "jauntywundrkind", "date": "2026-08-24", "stance": "neutral", "quote": "Celld, a Durable Objects implementation", "excerpt": "Conditional Put (often called compare and swap) shipped 21 months ago, and it has just been absolutely wild the massive flocking towards disaggregated storage, towards object stores that has been going on since then. https://news.ycombinator.com/item?id=42240678 https://aws.amazon.com/about-aws/whats-new/2024/11/amazon-s3-functionality-conditional-writes/ PicoMQ also showing up today, a Durable Streams implementation", "context": "", "use_case": "", "switched_from": "", "story": "Walgit \u2013 a Git server that is one binary in front of an object store"}, {"id": 787612113, "item_id": 49225757, "url": "https://news.ycombinator.com/item?id=49225757", "by": "minraws", "date": "2026-08-08", "stance": "recommend", "quote": "moving to it for now and will probably stop R2", "excerpt": "Found https://github.com/denoland/celld Ryan has been talking about it for a bit, moving to it for now and will probably stop R2.", "context": "", "use_case": "", "switched_from": "Cloudflare R2", "story": "Cloudflare R2 Outage (Sigh)"}, {"id": 787289888, "item_id": 49205618, "url": "https://news.ycombinator.com/item?id=49205618", "by": "somerandom1", "date": "2026-08-06", "stance": "warn", "quote": "I'm skeptical this actually holds at the point where data is written to storage", "excerpt": "Seeing something like this reminds me of Kleppmann's blog post: https://martin.kleppmann.com/2016/02/08/how-to-do-distributed-locking.html. celld's README states \"Object-storage compare-and-swap ensures that exactly one node owns a cell at a time,\" but I'm skeptical this actually holds at the point where data is written to storage - I had an AI skim through the code with me, and the actual segment writes looked like ", "context": "", "use_case": "", "switched_from": "", "story": "Celld: Self-hosted, distributed Durable Objects"}, {"id": 787065265, "item_id": 49191579, "url": "https://news.ycombinator.com/item?id=49191579", "by": "jitl", "date": "2026-08-05", "stance": "neutral", "quote": "", "excerpt": "> cloudflare the stuff is great when it works but Durable Objects can be quite expensive. whenever i get too excited about em all it takes is a little time trying to price it out to calm me down. > do i need to buy bare metal my first idea would be to run celld on AWS Kubernetes deployed to local zones https://docs.aws.amazon.com/eks/latest/userguide/auto-local-zone.html it\u2019s not \u201cregion: earth\u201d like cloudflare but p", "context": "", "use_case": "", "switched_from": "", "story": "Celld: Self-hosted, distributed Durable Objects"}, {"id": 787038929, "item_id": 49189933, "url": "https://news.ycombinator.com/item?id=49189933", "by": "jitl", "date": "2026-08-05", "stance": "compare", "quote": "what is the difference between celld and Cloudflare Workers open source version workerd?", "excerpt": "what is the difference between celld and Cloudflare Workers open source version workerd? https://github.com/cloudflare/workerd", "context": "", "use_case": "self-hosted Durable Objects", "switched_from": "", "story": "Celld: Self-hosted, distributed Durable Objects"}]}