Aditya Dalmia — BlogWriting on backend systems, AI evaluation, and building things.https://adityadalmia.com/en-usBuilding the cloud behind my projectshttps://adityadalmia.com/blog/cloud-building-my-own-platform/https://adityadalmia.com/blog/cloud-building-my-own-platform/A small Hetzner Kubernetes platform with shared services, repeatable deployments, and explicit operational tradeoffs.Tue, 22 Sep 2026 00:00:00 GMTinfrastructurearchitectureWhen every small app brings its own connection poolhttps://adityadalmia.com/blog/cloud-postgres-pools-and-proof/https://adityadalmia.com/blog/cloud-postgres-pools-and-proof/The shared Postgres limit, the rollout that reduced idle connections, and why a green dashboard is only one kind of evidence.Tue, 22 Sep 2026 00:00:00 GMTdatareliabilitySelf-hosting Temporal and putting it to workhttps://adityadalmia.com/blog/cloud-self-hosted-temporal/https://adityadalmia.com/blog/cloud-self-hosted-temporal/The infrastructure integration and application workflows behind our self-hosted Temporal deployment.Tue, 22 Sep 2026 00:00:00 GMTinfrastructurereliabilityTwo network planes, two different responsibilitieshttps://adityadalmia.com/blog/cloud-two-network-planes/https://adityadalmia.com/blog/cloud-two-network-planes/Why WireGuard protects cluster administration while NetBird connects applications and agent tools.Tue, 22 Sep 2026 00:00:00 GMTinfrastructurenetworkingBuilding Compass as a platformhttps://adityadalmia.com/blog/compass-building-a-platform/https://adityadalmia.com/blog/compass-building-a-platform/How one research engine grew into a shared data layer, an operator workspace, and a place to test competing ideas.Tue, 22 Sep 2026 00:00:00 GMTarchitecturesystemsA data architecture that remembers what it knewhttps://adityadalmia.com/blog/compass-data-architecture/https://adityadalmia.com/blog/compass-data-architecture/Captured evidence, observation revisions, and the difference between the time a fact describes and the time you received it.Tue, 22 Sep 2026 00:00:00 GMTdataarchitectureWhat we kept from the experiments we set asidehttps://adityadalmia.com/blog/compass-experiments-we-left-behind/https://adityadalmia.com/blog/compass-experiments-we-left-behind/Polymarket research, unreliable causal graphs, and the value of preserving a rejection with its evidence.Tue, 22 Sep 2026 00:00:00 GMTexperimentsevaluationHelmsman gives the research a place to livehttps://adityadalmia.com/blog/compass-helmsman-control-plane/https://adityadalmia.com/blog/compass-helmsman-control-plane/The operator workspace behind Compass, and why its API compiles work instead of quietly becoming another scheduler.Tue, 22 Sep 2026 00:00:00 GMTarchitectureproductsMoving the scheduler without running the work twicehttps://adityadalmia.com/blog/compass-moving-schedulers/https://adityadalmia.com/blog/compass-moving-schedulers/What the Compass migration to Kubernetes CronJobs taught us about ownership, cutovers, and observability.Tue, 22 Sep 2026 00:00:00 GMTinfrastructurereliabilityBuilding a real-time news parsing pipelinehttps://adityadalmia.com/blog/compass-realtime-news-parsing/https://adityadalmia.com/blog/compass-realtime-news-parsing/Idempotent writes, richer updates, retractions, and the difference between a quiet source and a broken collector.Tue, 22 Sep 2026 00:00:00 GMTdatareliabilityScore once, experiment many timeshttps://adityadalmia.com/blog/compass-score-once-experiment-many/https://adityadalmia.com/blog/compass-score-once-experiment-many/Separating model interpretation from deterministic experiments changed the cost and shape of Compass.Tue, 22 Sep 2026 00:00:00 GMTaiarchitectureevaluationTurning a chart argument into a testable definitionhttps://adityadalmia.com/blog/compass-structure-lab/https://adityadalmia.com/blog/compass-structure-lab/Structure Lab replaces vague visual agreement with versioned parameters, evidence, and a path into the wider platform.Tue, 22 Sep 2026 00:00:00 GMTevaluationproductsdataWhere the model stops and the code takes overhttps://adityadalmia.com/blog/compass-where-models-stop/https://adityadalmia.com/blog/compass-where-models-stop/The boundary at the heart of Compass, and why a convincing explanation is only one part of a reliable system.Tue, 22 Sep 2026 00:00:00 GMTsystemsaiOne person, many roles: designing Rental OShttps://adityadalmia.com/blog/rental-os-one-person-many-roles/https://adityadalmia.com/blog/rental-os-one-person-many-roles/Why a rental platform is a coordination problem, and why identity needs more care than a role dropdown.Tue, 22 Sep 2026 00:00:00 GMTproductssystemsAn RL environment is a systems problemhttps://adityadalmia.com/blog/rl-environments-are-systems/https://adityadalmia.com/blog/rl-environments-are-systems/A task, a sandbox, and a score need to agree. The engineering around that contract is where things get interesting.Tue, 22 Sep 2026 00:00:00 GMTaisystemsA shared memory for agents across repositorieshttps://adityadalmia.com/blog/skill-registry-cross-repo-knowledge/https://adityadalmia.com/blog/skill-registry-cross-repo-knowledge/Inside the skill registry: discovery, provenance, verification, and sharing knowledge without copying it into every repo.Tue, 22 Sep 2026 00:00:00 GMTaiarchitecturedeveloper-tools