Update 2023-11-13-devx.md

Co-authored-by: Sylvain Henry <[email protected]>

Author: yvan-sraka

blog/2023-11-13-devx.md

@@ -7,7 +7,7 @@ tags: [devx, haskell.nix, hix, iogx, nix]
 
 # The IOG Developer's Experience Shell
 
-The IOG's Developer Experience Shell, or `DevX` for short, is an opinionated development environment tailored for Haskell. Built on top of Nix expressions, it provides a reproducible and seamless, full-featured developer shell with tools such as `cabal-install`, `ghc`, `hls`, and `hlint`. `DevX` is built upon the battle-tested `haskell.nix`, a framework for building Haskell packages with Nix. Knowing Nix isn't a prerequisite to read the post except for the last `hix` section. In short, `haskell.nix` turns your Cabal or Stack project and its dependencies into a Nix expression. We will explain how to use `haskell.nix` on its own using `hix` in the last section.
+The IOG's Developer Experience Shell, or `DevX` for short, is an opinionated development environment tailored for Haskell. Built on top of Nix expressions, it provides a reproducible, seamless, and full-featured developer shell with tools such as `cabal-install`, `ghc`, `hls`, and `hlint`. `DevX` is built upon the battle-tested `haskell.nix`, a framework for building Haskell packages with Nix. Knowing Nix isn't a prerequisite to read the post except for the last `hix` section. In short, `haskell.nix` turns your Cabal or Stack project and its dependencies into a Nix expression. We will explain how to use `haskell.nix` on its own using `hix` in the last section.
 
  But why Nix? Haskell developers often encounter the need for distinct environments per project. While solutions like stack resolvers and cabal project files address some concerns, they often fall short in terms of environment isolation. E.g., a Cabal project file could not be enough, because external (non-Haskell / system) dependencies need to be tracked too (that's exactly what Nix does), and could lead to inconsistent (non-reproducibles) builds. For instance, working on the Cardano performance regression while migrating from GHC 8.10 to 9.2, this required different toolchains. And, addressing this without `nix` would have been an absolute mess... With the `DevX` shell and `direnv`, you can achieve seamless transitions between projects. To illustrate, consider:
 ```shell