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Teaching Booleans About Versions: A Theory-Augmented BDD Library in OCaml

A tour of Theo, an OCaml BDD library with complement edges for O(1) negation, ephemeron-based caching, and theory support for reasoning about version constraints and equality, turning logical equivalence into a pointer comparison.

21 Jul 2026

Jérôme Vouillon

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Kcas: Building a lock-free STM for OCaml (1/2)

In the past few months I've had the pleasure of working on the Kcas library. In this and a follow-up post, I will discuss the history and…

07 Aug 2023

Tarides

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Optimising Archive Node Storage for Tezos

For the past few years, Tarides has been responsible for the storage component of Tezos, from L1 and L2 shells up to the Tezos protocol. In…

05 May 2023

Tarides

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Server-side rendering React in OCaml

Software engineer into ReasonML and OCaml. Working on styled-ppx and UI stuff at Ahrefs. Co-host at emelle.tv

05 Apr 2023

sancho.dev

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Improving Tezos Storage : update and beta-testing

In a previous post, we presented some work that we did to improve the quantity of storage used by the Tezos node. Our post generated a lot of comments, in which upcoming features such as garbage collection and pruning were introduced. It also motivated us to keep working on this (hot) topic, and we ...

30 Jan 2019

OCamlPro

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Improving Tezos Storage

Running a Tezos node currently costs a lot of disk space, about 59 GB for the context database, the place where the node stores the states corresponding to every block in the blockchain, since the first one. Of course, this is going to decrease once garbage collection is integrated, i.e. removing ve...

15 Jan 2019

OCamlPro

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