# Fodwatch: Automation for detecting reproducibility issues in fixed-output derivations

**URL:** https://discourse.nixos.org/t/fodwatch-automation-for-detecting-reproducibility-issues-in-fixed-output-derivations/28671
**Category:** Announcements
**Created:** [June 2, 2023, 6:09pm UTC](https://discourse.nixos.org/t/fodwatch-automation-for-detecting-reproducibility-issues-in-fixed-output-derivations/28671 "2023-06-02T18:09:41Z")
**Posts on this page:** 1
**Showing post:** 10

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### Author: ![fricklerhandwerk](https://discourse.nixos.org/user_avatar/discourse.nixos.org/fricklerhandwerk/32/2029_2.png) [@fricklerhandwerk](https://discourse.nixos.org/u/fricklerhandwerk)
#### Post date: [July 18, 2025, 9:01am UTC](https://discourse.nixos.org/t/fodwatch-automation-for-detecting-reproducibility-issues-in-fixed-output-derivations/28671/10 "2025-07-18T09:01:25Z")

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The source is at [GitHub - multivac61/fod-oracle](https://github.com/multivac61/fod-oracle). We had some last-minute issues with getting the project into production, which is why unfortunately the tool can’t be shipped as intended. I’ll write up an update with details on the main thread in the next days. @multivac61 @mic92 and I received great support from @wolfgangwalther @roberth @Conni2461 to sort things out, and we’re preparing a revised implementation plan and schedule, which would also address @tobiasBora’s [concerns](https://discourse.nixos.org/t/transforming-global-software-distribution-with-nixpkgs/64989/15) about design and efficiency.

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_[View the full topic](https://discourse.nixos.org/t/fodwatch-automation-for-detecting-reproducibility-issues-in-fixed-output-derivations/28671)._