19 February 2026
Nickel since 1.0
A round-up of improvements over the last two and a half years
nickel
5 September 2024
Adding algebraic data types to Nickel
A recent release of Nickel added algebraic data types and pattern matching. This blog post explains the motivation behind this addition, the design choices made, the considerations around backward compatibility and how ADTs can be useful for a configuration language.
22 August 2024
Programming Languages & Compilers Activity Report - Q2 2024
A summary of the open-source work done by the Programming Languages & Compilers team at Tweag in the second quarter of 2024.
20 June 2024
Nickel modules
Implementing an equivalent to the NixOS module system in Nickel
16 May 2024
Nickel: Toward a Programmable LSP for Configurations
Nickel 1.5 ships with a new contract evaluator in the LSP. Together with custom contracts, this enables a powerful and native way to extend the LSP with custom checks, from complex validation rules to enforcing security policies on your infrastructure-as-code.
18 April 2024
Cloud Native Computing in 2024—feeling the pulse at Kubecon
We just came out of Kubecon 2024. Here are our impressions of the trends and evolutions in infrastructure, configuration management and cloud native computing
16 November 2023
Organist: stay sane managing your development environments
2 November 2023
Great Nickel configurations from little merges grow
Explore how to write modular and reusable configuration in Nickel using its merge system.
19 October 2023
JSON Schemas to Nickel contracts
Get better error reporting and LSP integration for your JSON Schemas in Nickel.
30 May 2023
Announcing Tf-Ncl 0.1
With Nickel releasing 1.0 I'm excited to announce the 0.1 release of Tf-Ncl, a tool for writing Terraform deployments with Nickel instead of HCL.
17 May 2023
Announcing Nickel 1.0
23 February 2023
Taking the pulse of infrastructure management in 2023
We went to FOSDEM23 and CfgMgmtCamp23. Here are my impressions of the trends and evolutions in infrastructure and configuration management
24 January 2023
Nix with; with Nickel
The Nix `with` keyword is challenging, but we transpiled it to Nickel anyway.
20 December 2022
Announcing Nickel 0.3.1
What's new in Nickel 0.3.1
20 September 2022
Optimizing Nickel's Array Contracts
A short dive into Nickel's reference interpreter
28 April 2022
Union and intersection contracts are hard, actually
Why union and intersection contracts are hard in a lazy language, and how Nickel handles them.
11 March 2022
First release of Nickel
18 March 2021
Types à la carte in Nickel
A dive into Nickel's gradual type system, which mixes dynamic and static typing
22 January 2021
Programming with contracts in Nickel
22 October 2020