# Initial implementation of \`zig build --watch\` just landed in master branch

**URL:** <https://ziggit.dev/t/initial-implementation-of-zig-build-watch-just-landed-in-master-branch/5117>\
**Category:** News\
**Tags:** build-system\
**Created:** [July 13, 2024, 2:16am UTC](https://ziggit.dev/t/initial-implementation-of-zig-build-watch-just-landed-in-master-branch/5117 "2024-07-13T02:16:14Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![andrewrk](https://ziggit.dev/user_avatar/ziggit.dev/andrewrk/32/7011_2.png) [@andrewrk](https://ziggit.dev/u/andrewrk)\
**Post date:** [July 13, 2024, 8:01pm UTC](https://ziggit.dev/t/initial-implementation-of-zig-build-watch-just-landed-in-master-branch/5117/8 "2024-07-13T20:01:11Z")

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> [@matklad](#):
>
> ` // If file is updated here, will it be picked up?`

Not on the first build - same as how it won’t be picked up with a regular `zig build` if you edit source files while the build is running. However, once the watch is established, it will pick up changes that happen during rebuilds because the change notifications will queue up inside the fanotify buffer.

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_[View the full topic](https://ziggit.dev/t/initial-implementation-of-zig-build-watch-just-landed-in-master-branch/5117)._