Lumi builds supply chain software for ecommerce brands.

Type-safe JSON queries for Esqueleto

Adding type safety to our generated SQL code by checking it against our Haskell type information

An Applicative for Transactional Validation

How we built a very simple DSL for application-side validation using tools from the Haskell standard library.

Announcing Lumi Components

Lumi Components is a DSL for building Lumi UIs, and we're excited to announce that now it's open source!

Using PureScript to Create a Domain-Specific Language for Building Forms with Validation

How we created a small, type-safe, embedded, domain-specific language for form components.

PureScript and Haskell at Lumi

How we’re improving correctness on the front-end by moving from JavaScript to PureScript.

Migrating from RethinkDB to Postgres, an Experience Report

How we switched from RethinkDB and ElasticSearch to Postgres, leaning heavily on Haskell.

Lumi is accelerating the world's transition to a circular economy. Want to work with us? We're hiring.

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