# Hat support for mojo 1.0

**URL:** <https://forum.modular.com/t/hat-support-for-mojo-1-0/3421>\
**Category:** Community Showcase\
**Created:** [August 18, 2026, 7:50pm UTC](https://forum.modular.com/t/hat-support-for-mojo-1-0/3421 "2026-08-18T19:50:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![duck\_tape](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.modular.com/duck_tape/32/432_2.png) [@duck\_tape](https://forum.modular.com/u/duck_tape)\
**Post date:** [August 18, 2026, 7:50pm UTC](https://forum.modular.com/t/hat-support-for-mojo-1-0/3421/1 "2026-08-18T19:50:34Z")

</div>

> **[GitHub - sstadick/hat: Thin wrapper over pixi to be used as a mojo build...](https://github.com/sstadick/hat)**
>
> Thin wrapper over pixi to be used as a mojo build tool.

hat is a cargo-like wrapper around pixi, and is now updated for `precompile` / `.mojoc` changes.

Example:

```auto
# Create a new binary project
hat new --name mojo-grep

# Create a new lib project
hat new --lib --name amazing-lib

# Track the latest nightly compiler instead of stable Mojo 1.0.0
hat new --nightly --name nightly-project

# Build project (defaults to release build)
hat build 

# Build with debug and asserts on
hat build --debug

# Test your project
hat test

```

---

<div class="post-metadata">

**Author:** ![duck\_tape](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.modular.com/duck_tape/32/432_2.png) [@duck\_tape](https://forum.modular.com/u/duck_tape)\
**Post date:** [August 18, 2026, 7:53pm UTC](https://forum.modular.com/t/hat-support-for-mojo-1-0/3421/2 "2026-08-18T19:53:05Z")

</div>

Extramojo and mojopt have also been updated to 1.0, but those are a bit less exciting:

- extra mojo: [GitHub - ExtraMojo/ExtraMojo: A library of nice to have things not found in the current mojo stdlib · GitHub](https://github.com/ExtraMojo/ExtraMojo) / [extramojo – ExtraMojo](https://extramojo.github.io/ExtraMojo/extramojo/)
- [GitHub - sstadick/mojopt: Structopt inspired command line arg parser in Mojo · GitHub](https://github.com/sstadick/mojopt)

There is also a pixi PR for the `pixi-build-mojo` backend to use precompile/mojoc: [fix(pixi-build-mojo): use .mojoc with precompile by sstadick · Pull Request #6860 · prefix-dev/pixi · GitHub](https://github.com/prefix-dev/pixi/pull/6860) that will remove warnings when using hat.