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til/mise/override-your-project-mise-file.md
2026-02-18 15:33:46 -06:00

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Override Your Project Mise File

A project I'm working on has a version-controlled .mise.toml file in it. Some changes were made to that recently that introduce some env vars that conflict with my setup. If I make edits to that file, then I have a modified version of .mise.toml sitting in my Git working copy.

# .mise.toml
[env]
CONFIG_SETTING = "project"

Instead, I can rely on the loading precedence rules of mise to override those project settings with my individual settings. I can do that with the .mise.local.toml file which is played on top of any mise configuration from files further down the precedence chain.

# .mise.local.toml
[env]
CONFIG_SETTING = "override"

Assuming I have mise setup with my shell environment to automatically load in these files, I can now check what takes precedence:

$ echo $CONFIG_SETTING
override

Make sure .mise.local.toml is included in the .gitignore file to avoid checking in your personal environment overrides.

To be sure about what files are loaded and in what order, give mise cfg a try. I discuss that in more detail in List The Files Being Loaded By Mise.