https://loam-cloud.vercel.app//blog Engineering notes on building Loam, the AI-native cloud on object storage. en Tue, 29 Sep 2026 00:00:00 GMT https://loam-cloud.vercel.app//blog/loam-ai-native-cloud-in-your-buckethttps://loam-cloud.vercel.app//blog/loam-ai-native-cloud-in-your-bucketTue, 29 Sep 2026 00:00:00 GMTAn AI application today runs five or six stateful systems. Loam puts retrieval, application data, durable workflows and jobs on one platform, with object storage as the ground it all stands on.Dinakaranplatformarchitectureobject-storage https://loam-cloud.vercel.app//blog/the-engine-hybrid-retrieval-on-object-storagehttps://loam-cloud.vercel.app//blog/the-engine-hybrid-retrieval-on-object-storageTue, 29 Sep 2026 00:00:00 GMTHow Loam's retrieval engine turns a bucket into vector, full-text and graph search behind the Qdrant, Elasticsearch and Flight SQL protocols, and where streams and Iceberg tables fit.Dinakaranplatformarchitectureengineering https://loam-cloud.vercel.app//blog/loam-live-reactive-database-on-tikvhttps://loam-cloud.vercel.app//blog/loam-live-reactive-database-on-tikvTue, 29 Sep 2026 00:00:00 GMTQueries that stay live and push new results, mutations that are transactions, server functions, a protobuf sync API, and a change feed that makes application data searchable. How it works, and what is built.Dinakaranplatformtikvengineering https://loam-cloud.vercel.app//blog/durable-execution-with-embedded-resonatehttps://loam-cloud.vercel.app//blog/durable-execution-with-embedded-resonateTue, 29 Sep 2026 00:00:00 GMTLoam links the Resonate server into its own binary, so the official Resonate SDKs get durable promises, retries, schedules and human approvals from the system that holds the agent's memory. Here is how, and the patterns we build on it.Dinakaranplatformdurable-executionengineering https://loam-cloud.vercel.app//blog/functions-billed-on-cpu-timehttps://loam-cloud.vercel.app//blog/functions-billed-on-cpu-timeTue, 29 Sep 2026 00:00:00 GMTAn agent that computes for 10 ms and waits 20 s on a model should pay for 10 ms. Our proposal for Loam Functions, with workerd, wasmtime and gVisor tiers and Resonate for long waits.Dinakaranplatformruntimedurable-execution https://loam-cloud.vercel.app//blog/jobs-on-loamhttps://loam-cloud.vercel.app//blog/jobs-on-loamTue, 29 Sep 2026 00:00:00 GMTOur proposal for running the job frameworks teams already use on Loam with a configuration change, on one Rust queue core over TiKV, with durable steps from Resonate when you want them.Dinakaranplatformdurable-executionruntime https://loam-cloud.vercel.app//blog/postgres-and-mysql-on-your-buckethttps://loam-cloud.vercel.app//blog/postgres-and-mysql-on-your-bucketTue, 29 Sep 2026 00:00:00 GMTReal applications need real Postgres and MySQL. What Loam will serve over the Postgres wire itself, what we learned running Neon and WeSQL on RustFS, and why one is under evaluation and the other is not adopted.Dinakaranplatformsqlobject-storage https://loam-cloud.vercel.app//blog/self-hosting-loam-with-gitopshttps://loam-cloud.vercel.app//blog/self-hosting-loam-with-gitopsTue, 29 Sep 2026 00:00:00 GMTHow the whole stack is meant to deploy from one Git repository, from a laptop cluster to your own data centre, on RustFS, the TiKV operator, a Loam operator and Argo CD. And the line between what is open source and what only the managed cloud runs.Dinakaranplatformself-hostingopen-source https://loam-cloud.vercel.app//blog/resonate-durable-promiseshttps://loam-cloud.vercel.app//blog/resonate-durable-promisesTue, 29 Sep 2026 00:00:00 GMTWhat Resonate is, how durable promises and replay work, why Loam chose it over Temporal and the alternatives, how we link its Rust server into our binary through a fork, and its license and limits.Dinakaranopen-sourcedurable-executionresonate https://loam-cloud.vercel.app//blog/tikv-and-pdhttps://loam-cloud.vercel.app//blog/tikv-and-pdTue, 29 Sep 2026 00:00:00 GMTHow TiKV replicates and transacts, what PD does, why API v2 keyspaces made TiKV Loam's transactional store, what its change feed can and cannot do for us, and why we carry a fork of the Rust client.Dinakaranopen-sourcetikvstorage https://loam-cloud.vercel.app//blog/rustfs-s3-in-rusthttps://loam-cloud.vercel.app//blog/rustfs-s3-in-rustTue, 29 Sep 2026 00:00:00 GMTLoam's source of truth is a bucket, so the bucket has to keep its promises. What RustFS is, why it replaced MinIO as Loam's default self-hosted store, what Loam needs from any S3 store, and what we still have to verify.Dinakaranopen-sourceobject-storageself-hosting https://loam-cloud.vercel.app//blog/datafusion-and-arrowhttps://loam-cloud.vercel.app//blog/datafusion-and-arrowTue, 29 Sep 2026 00:00:00 GMTEvery Loam read, whether a Qdrant query, an Elasticsearch search or SQL, compiles to a DataFusion plan over Arrow batches. How DataFusion works, what Loam adds to it, why we embed it, and the version lockstep that comes with it.Dinakaranopen-sourceengineeringstorage https://loam-cloud.vercel.app//blog/lance-columnar-format-for-ai-datahttps://loam-cloud.vercel.app//blog/lance-columnar-format-for-ai-dataTue, 29 Sep 2026 00:00:00 GMTHow Lance lays out fragments, versions and indexes for fast random access on object storage, why Loam stores collections in it instead of Parquet, the detached versions we commit, and the churn we pin against.Dinakaranopen-sourcelancestorage https://loam-cloud.vercel.app//blog/tantivy-and-quickwit-splitshttps://loam-cloud.vercel.app//blog/tantivy-and-quickwit-splitsTue, 29 Sep 2026 00:00:00 GMTHow Tantivy indexes and scores text, how Quickwit's split format makes an index readable from a bucket with one ranged GET, why Loam vendors Quickwit's code instead of running Quickwit, and how we keep BM25 scores independent of the split layout.Dinakaranopen-sourcetantivystorage https://loam-cloud.vercel.app//blog/iceberg-iceberg-rust-and-lakekeeperhttps://loam-cloud.vercel.app//blog/iceberg-iceberg-rust-and-lakekeeperTue, 29 Sep 2026 00:00:00 GMTHow Iceberg tables commit on object storage, what iceberg-rust can and cannot write today, why Lakekeeper is Loam's catalog, and what Loam plans to add on top for AI analytics. All of it planned.Dinakaranopen-sourcestoragesql https://loam-cloud.vercel.app//blog/dapr-api-and-secretshttps://loam-cloud.vercel.app//blog/dapr-api-and-secretsTue, 29 Sep 2026 00:00:00 GMTWhat Dapr is and how its sidecar and components work, why Loam plans to serve a subset of Dapr's API from a Rust server instead of running a sidecar per function, and how tenant secrets would flow through Dapr's secrets building block.Dinakaranopen-sourceruntimeself-hosting https://loam-cloud.vercel.app//blog/workerd-wasmtime-and-gvisorhttps://loam-cloud.vercel.app//blog/workerd-wasmtime-and-gvisorTue, 29 Sep 2026 00:00:00 GMTThe three isolation technologies behind Loam's proposed function tiers. How V8 isolates, WebAssembly and a user-space kernel each contain code, what each costs, how each can be metered, and why workerd never runs two tenants in one process.Dinakaranopen-sourceruntime https://loam-cloud.vercel.app//blog/openfga-authorizationhttps://loam-cloud.vercel.app//blog/openfga-authorizationTue, 29 Sep 2026 00:00:00 GMTHow OpenFGA's Zanzibar-style model answers "may this user do this to that", why Loam plans it as its fine-grained authorizer beside built-in roles, the tenant fence we add to Lakekeeper's model, and why tuple writes go through an outbox.Dinakaranopen-sourceself-hosting https://loam-cloud.vercel.app//blog/sail-risingwave-neon-and-wesqlhttps://loam-cloud.vercel.app//blog/sail-risingwave-neon-and-wesqlTue, 29 Sep 2026 00:00:00 GMTFour engines Loam plans to run next to itself as separate processes. How each works, what it would do for Loam, its license and its limits, including the one we evaluated and did not adopt.Dinakaranopen-sourcesqlruntime https://loam-cloud.vercel.app//blog/slatedb-foyer-openraft-and-friendshttps://loam-cloud.vercel.app//blog/slatedb-foyer-openraft-and-friendsTue, 29 Sep 2026 00:00:00 GMTSix Rust libraries inside Loam that get less attention than DataFusion or Lance but hold up the primary-key index, the cache, the metastore, the HNSW hot tier and every protobuf API. What each does, how Loam uses it, and its limits.Dinakaranopen-sourcestorageengineering https://loam-cloud.vercel.app//blog/crash-gateshttps://loam-cloud.vercel.app//blog/crash-gatesSat, 26 Sep 2026 00:00:00 GMTNamed failpoints, a store fault matrix and a seeded linearizability simulation. This is what "no acknowledged write is ever lost" means in Loam's test suite.Dinakarantestingreliabilityengineering https://loam-cloud.vercel.app//blog/one-manifest-two-formatshttps://loam-cloud.vercel.app//blog/one-manifest-two-formatsFri, 25 Sep 2026 00:00:00 GMTHow Loam keeps a Lance dataset and a set of Tantivy splits mutually consistent on S3, with one compare-and-swap as the only commit point.Dinakaranstoragelancetantivyengineering https://loam-cloud.vercel.app//blog/why-object-storagehttps://loam-cloud.vercel.app//blog/why-object-storageTue, 22 Sep 2026 00:00:00 GMTMost of an AI app's search data is cold most of the time. Here is why Loam keeps every byte in your bucket and treats compute as a cache.Dinakaranarchitectureobject-storagehot-tier