# Help **URL:** https://discourse.flox.dev/c/help/10.md [Latest](https://discourse.flox.dev/latest.md) · [Categories](https://discourse.flox.dev/categories.md) · [Tags](https://discourse.flox.dev/tags.md) --- ## [About the Help category](https://discourse.flox.dev/t/about-the-help-category/56)
**Author:** [@limeytexan](https://discourse.flox.dev/u/limeytexan)\ **Replies:** 0
Ask for assistance installing or using flox. We’ll try to answer your questions and help you debug your problems ASAP. Some general guidelines for posting: Search your problem before posting Create a title that clear… --- ## [Can't publish a package (timeout)](https://discourse.flox.dev/t/cant-publish-a-package-timeout/1262)
**Author:** [@tharpool](https://discourse.flox.dev/u/tharpool)\ **Replies:** 0\ **Last updated:** [July 5, 2026, 7:44pm UTC](https://discourse.flox.dev/t/cant-publish-a-package-timeout/1262 "2026-07-05T19:44:53Z")
This was working June 27th and no longer after July 4th. When publishign locally, cicd I get this. ✘ ERROR: Failed while waiting for publish confirmation: Timed out waiting for publish completion 0: ::ext\_context 1: f… --- ## [Flox is only using local, not remote from FloxHub](https://discourse.flox.dev/t/flox-is-only-using-local-not-remote-from-floxhub/1259)
**Author:** [@salilsub](https://discourse.flox.dev/u/salilsub)\ **Replies:** 1\ **Last updated:** [June 15, 2026, 5:56pm UTC](https://discourse.flox.dev/t/flox-is-only-using-local-not-remote-from-floxhub/1259 "2026-06-15T17:56:27Z")
I have an environment I have created locally and pushed to FloxHub. Whenever I try to use the environment using flox activate -r \, it always uses the local version, i.e I see \ (loca… --- ## [Troubleshoot install or upgrade asking for password multiple times](https://discourse.flox.dev/t/troubleshoot-install-or-upgrade-asking-for-password-multiple-times/1256)
**Author:** [@jbayer](https://discourse.flox.dev/u/jbayer)\ **Replies:** 0\ **Last updated:** [May 12, 2026, 1:36am UTC](https://discourse.flox.dev/t/troubleshoot-install-or-upgrade-asking-for-password-multiple-times/1256 "2026-05-12T01:36:13Z")
A user reported having a frustrating experience when trying to upgrade Flox and getting asked for their password quite a few different times. ==\> Upgrading flox 1.11.4 → 1.12.0 ==\> Removing launchctl service org.nixo… --- ## [How to diagnose what is holding a package to an older version than can be seen with \`flox show\`?](https://discourse.flox.dev/t/how-to-diagnose-what-is-holding-a-package-to-an-older-version-than-can-be-seen-with-flox-show/1250)
**Author:** [@will.gorman](https://discourse.flox.dev/u/will.gorman)\ **Replies:** 4\ **Last updated:** [April 20, 2026, 10:39pm UTC](https://discourse.flox.dev/t/how-to-diagnose-what-is-holding-a-package-to-an-older-version-than-can-be-seen-with-flox-show/1250 "2026-04-20T22:39:55Z")
A problem that I seem to have with Flox sometimes and haven’t been able to figure out is what to do when I have an environment with some package installed and I can see a newer version of a package with flox show but run… --- ## [Generic "The installation failed" for Flox pkg installer for MacOS](https://discourse.flox.dev/t/generic-the-installation-failed-for-flox-pkg-installer-for-macos/1245)
**Author:** [@jbayer](https://discourse.flox.dev/u/jbayer)\ **Replies:** 0\ **Last updated:** [April 16, 2026, 12:03am UTC](https://discourse.flox.dev/t/generic-the-installation-failed-for-flox-pkg-installer-for-macos/1245 "2026-04-16T00:03:29Z")
When running the package installer, MacOS provides a generic “The installation failed.” message without additional information as shown below. I’m documenting this for posterity and search results in case someone else e… --- ## [MacOS install has unidentified Login Items](https://discourse.flox.dev/t/macos-install-has-unidentified-login-items/1115)
**Author:** [@jbayer](https://discourse.flox.dev/u/jbayer)\ **Replies:** 3\ **Last updated:** [March 10, 2026, 4:47pm UTC](https://discourse.flox.dev/t/macos-install-has-unidentified-login-items/1115 "2026-03-10T16:47:08Z")
I noticed that after installing Flox, there are 2 unidentified login items that are associated with the sh command. I believe one of these is so that Nix can run a daemon. When I did not have them enabled, I got this err… --- ## [Pure build rust](https://discourse.flox.dev/t/pure-build-rust/1232)
**Author:** [@Omkar](https://discourse.flox.dev/u/Omkar)\ **Replies:** 3\ **Last updated:** [March 9, 2026, 10:41am UTC](https://discourse.flox.dev/t/pure-build-rust/1232 "2026-03-09T10:41:30Z")
I setup manifest of my rust project as shown in example repo But when I build it in pure mode, I am getting error: Cargo.yaml is not present in /build/myproject-pure-0.1.0 After some digging around I saw that there … --- ## [Pure build of npm package](https://discourse.flox.dev/t/pure-build-of-npm-package/1222)
**Author:** [@t0rx](https://discourse.flox.dev/u/t0rx)\ **Replies:** 3\ **Last updated:** [December 17, 2025, 8:22pm UTC](https://discourse.flox.dev/t/pure-build-of-npm-package/1222 "2025-12-17T20:22:41Z")
I’m trying to build a flox package for the FINOS CALM CLI npm package. This is my first time trying to do a build so I’m probably missing something, but based on the Flox npm docs and manifest build docs, I’ve come up w… --- ## [End-to-end example of multi-platform build and publish (Go/Rust)?](https://discourse.flox.dev/t/end-to-end-example-of-multi-platform-build-and-publish-go-rust/1202)
**Author:** [@zzztimbo](https://discourse.flox.dev/u/zzztimbo)\ **Replies:** 2\ **Last updated:** [November 21, 2025, 4:13am UTC](https://discourse.flox.dev/t/end-to-end-example-of-multi-platform-build-and-publish-go-rust/1202 "2025-11-21T04:13:16Z")
I’m trying to understand the complete workflow for building and publishing packages that work on multiple platforms (e.g., both macOS and Linux). I’ve read some documentation about how to set up multi-platform builds, b… --- ## [GCC tools for code coverage?](https://discourse.flox.dev/t/gcc-tools-for-code-coverage/1186)
**Author:** [@alex](https://discourse.flox.dev/u/alex)\ **Replies:** 3\ **Last updated:** [September 16, 2025, 11:09pm UTC](https://discourse.flox.dev/t/gcc-tools-for-code-coverage/1186 "2025-09-16T23:09:07Z")
I have a Flox manifest for my C/C++ development environment with \[install\] gcc.pkg-path = “gcc” lcov.pkg-path = “lcov” # \[…\] I am building test executable with coverage enabled (GCC --coverage build and link flag). How… --- ## [Help porting devcontainer development environment to Flox](https://discourse.flox.dev/t/help-porting-devcontainer-development-environment-to-flox/1184)
**Author:** [@yitzhakbg](https://discourse.flox.dev/u/yitzhakbg)\ **Replies:** 0\ **Last updated:** [September 4, 2025, 5:21pm UTC](https://discourse.flox.dev/t/help-porting-devcontainer-development-environment-to-flox/1184 "2025-09-04T17:21:01Z")
Couldn’t find any utilities that would ease the process of porting a rather complex devcontainer based development environment: https://github.com/games-on-whales/wolf to Flox. No option other than to meticulously edit… --- ## [Error building with sandbox](https://discourse.flox.dev/t/error-building-with-sandbox/1181)
**Author:** [@will.gorman](https://discourse.flox.dev/u/will.gorman)\ **Replies:** 4\ **Last updated:** [September 2, 2025, 7:46pm UTC](https://discourse.flox.dev/t/error-building-with-sandbox/1181 "2025-09-02T19:46:33Z")
I’m trying to build something with sandbox = "pure" on flox 1.7.1 but I’m getting this error: Rendering fio build script to /tmp/53259e9e/fio/build.bash /nix/store/6sb7gak61cwcg3p5grnhhyndi5hz935y-coreutils-9.7/bin/comm… --- ## [Error installing my published package](https://discourse.flox.dev/t/error-installing-my-published-package/1180)
**Author:** [@will.gorman](https://discourse.flox.dev/u/will.gorman)\ **Replies:** 2\ **Last updated:** [August 25, 2025, 7:26pm UTC](https://discourse.flox.dev/t/error-installing-my-published-package/1180 "2025-08-25T19:26:24Z")
I’m trying to publish my first package and running into a problem. The publish succeeded and I can see my package on the hub and with flox search but I’m getting an error when installing. I’m attempting to install it o… --- ## [Launching flatpak apps from within an activated environment](https://discourse.flox.dev/t/launching-flatpak-apps-from-within-an-activated-environment/1163)
**Author:** [@Pascalio](https://discourse.flox.dev/u/Pascalio)\ **Replies:** 5\ **Last updated:** [August 14, 2025, 11:55am UTC](https://discourse.flox.dev/t/launching-flatpak-apps-from-within-an-activated-environment/1163 "2025-08-14T11:55:20Z")
Hi there! Flox looks like an absolute superstar! But I can’t figure out how to make it play well with flatpaks. I’ve set up my flox environment and activated it. Can access the programs from the command-line, alright. … --- ## [Querying flox for metadata about a package's transitive dependencies and a package's files](https://discourse.flox.dev/t/querying-flox-for-metadata-about-a-packages-transitive-dependencies-and-a-packages-files/1154)
**Author:** [@gpwclark](https://discourse.flox.dev/u/gpwclark)\ **Replies:** 3\ **Last updated:** [July 30, 2025, 8:24pm UTC](https://discourse.flox.dev/t/querying-flox-for-metadata-about-a-packages-transitive-dependencies-and-a-packages-files/1154 "2025-07-30T20:24:09Z")
New-ish to flox but I really love it. You guys realized that nix was too complicated for your team’s 0.1X dev AND that docker was complecting development environments and deployments. Now I have a reproducible environmen… --- ## [Reproducing a devenv environment containing a postgresql dependency](https://discourse.flox.dev/t/reproducing-a-devenv-environment-containing-a-postgresql-dependency/1141)
**Author:** [@superuser](https://discourse.flox.dev/u/superuser)\ **Replies:** 3\ **Last updated:** [July 14, 2025, 10:26am UTC](https://discourse.flox.dev/t/reproducing-a-devenv-environment-containing-a-postgresql-dependency/1141 "2025-07-14T10:26:04Z")
Hello, I currently use a devenv environment which I am trying to migrate to Flox. My project is a Python project with a pyproject.toml file: dependencies = \[ "geopy\>=2.4.1", "ics\>=0.7.2", "numpy\>=2.1.3", … --- ## [Install Azure EventHubs Checkpoint Store Python Package?](https://discourse.flox.dev/t/install-azure-eventhubs-checkpoint-store-python-package/1143)
**Author:** [@sheeeng](https://discourse.flox.dev/u/sheeeng)\ **Replies:** 1\ **Last updated:** [June 20, 2025, 4:57pm UTC](https://discourse.flox.dev/t/install-azure-eventhubs-checkpoint-store-python-package/1143 "2025-06-20T16:57:04Z")
How can we flox install python313Packages.azure-eventhub-checkpointstoreblob-aio? --- ## [Creating a clean environment](https://discourse.flox.dev/t/creating-a-clean-environment/1140)
**Author:** [@mfairley](https://discourse.flox.dev/u/mfairley)\ **Replies:** 1\ **Last updated:** [June 16, 2025, 2:02pm UTC](https://discourse.flox.dev/t/creating-a-clean-environment/1140 "2025-06-16T14:02:17Z")
Hello, is there a way to run flox activate in a way that creates a clean environment with no system tools available (except for some declared exceptions)? That way I can be sure I have declared all required dependencies … --- ## [Has anyone got Flox to work with Codex?](https://discourse.flox.dev/t/has-anyone-got-flox-to-work-with-codex/1137)
**Author:** [@t0rx](https://discourse.flox.dev/u/t0rx)\ **Replies:** 2\ **Last updated:** [June 13, 2025, 6:29am UTC](https://discourse.flox.dev/t/has-anyone-got-flox-to-work-with-codex/1137 "2025-06-13T06:29:45Z")
I’m experimenting with ChatGPT Codex, and would really like to be able to just invoke my Flox environment rather than having to create an environment setup script that I have to maintain separately. Codex currently only… --- ## [Easier way to invoke a jarfile?](https://discourse.flox.dev/t/easier-way-to-invoke-a-jarfile/1135)
**Author:** [@rogererens](https://discourse.flox.dev/u/rogererens)\ **Replies:** 1\ **Last updated:** [June 4, 2025, 2:24pm UTC](https://discourse.flox.dev/t/easier-way-to-invoke-a-jarfile/1135 "2025-06-04T14:24:08Z")
Hi all, I used flox install tika to obtain the Apache Tika toolkit and activated this in my tika environment. Now I’d like to use the command line version of the toolkit using java -jar tika-app.jar and eventually foun… --- ## [Show running environment in terminal](https://discourse.flox.dev/t/show-running-environment-in-terminal/747)
**Author:** [@Wulfheart](https://discourse.flox.dev/u/Wulfheart)\ **Replies:** 3\ **Last updated:** [June 2, 2025, 10:35pm UTC](https://discourse.flox.dev/t/show-running-environment-in-terminal/747 "2025-06-02T22:35:48Z")
Hello, I don’t think that I currently have a grasp what this project is about. I would like to have my zsh/oh-my-zsh/p10k setup to automatically show the current environment. How can I achieve this? Thank you in advan… --- ## [GitHub Action hangs indefinitely when using flox activate on Ubuntu / Linux](https://discourse.flox.dev/t/github-action-hangs-indefinitely-when-using-flox-activate-on-ubuntu-linux/1129)
**Author:** [@uncvrd](https://discourse.flox.dev/u/uncvrd)\ **Replies:** 4\ **Last updated:** [May 13, 2025, 10:32pm UTC](https://discourse.flox.dev/t/github-action-hangs-indefinitely-when-using-flox-activate-on-ubuntu-linux/1129 "2025-05-13T22:32:45Z")
Hey there! I’ve been using Flox on Mac basically without a hitch for 3 months, and I’ve started to explore using Flox for GitHub Actions. However, I can’t seem to get Flox to activate in a linux environment. Here are the… --- ## [Containerize on Colima?](https://discourse.flox.dev/t/containerize-on-colima/1118)
**Author:** [@sebb3](https://discourse.flox.dev/u/sebb3)\ **Replies:** 2\ **Last updated:** [May 8, 2025, 5:16pm UTC](https://discourse.flox.dev/t/containerize-on-colima/1118 "2025-05-08T17:16:27Z")
Hi! After reading your blog about colima on macos I decided to uninstall docker and give it a try. However, I’m failing to run flox containerize. This is the error I’m getting: :cross\_mark: ERROR: container source com… --- ## [Best way to add additional dependencies not part of nix pkgs](https://discourse.flox.dev/t/best-way-to-add-additional-dependencies-not-part-of-nix-pkgs/1126)
**Author:** [@tehdartherer](https://discourse.flox.dev/u/tehdartherer)\ **Replies:** 2\ **Last updated:** [April 29, 2025, 2:29pm UTC](https://discourse.flox.dev/t/best-way-to-add-additional-dependencies-not-part-of-nix-pkgs/1126 "2025-04-29T14:29:42Z")
I’m wondering what’s the best thing to add dependencies which are not part of the nix packages? E.g. some python packages or libraries from other languages like golang, rust, java, etc. Falling back to the usual tools, b… --- ## [How do install rails 8.0 or later with in flox dev environment?](https://discourse.flox.dev/t/how-do-install-rails-8-0-or-later-with-in-flox-dev-environment/1121)
**Author:** [@vishnu3014](https://discourse.flox.dev/u/vishnu3014)\ **Replies:** 2\ **Last updated:** [April 21, 2025, 11:13am UTC](https://discourse.flox.dev/t/how-do-install-rails-8-0-or-later-with-in-flox-dev-environment/1121 "2025-04-21T11:13:06Z")
Hello Flox Users ! I’ve created a new flox environment to develop ruby on rails application. I was able to find ruby package, however I’m unable to find the latest version rails 8.0 in the flox install search results. … --- ## [Unable to install flox on Mac OS (Apple Silicon)](https://discourse.flox.dev/t/unable-to-install-flox-on-mac-os-apple-silicon/1120)
**Author:** [@imthor](https://discourse.flox.dev/u/imthor)\ **Replies:** 2\ **Last updated:** [April 17, 2025, 7:57pm UTC](https://discourse.flox.dev/t/unable-to-install-flox-on-mac-os-apple-silicon/1120 "2025-04-17T19:57:08Z")
I’ve tried both downloading the .pkg file directly and running brew install flox, but both methods consistently fail for me. I had a similar issue earlier with flox-1.3.17, and I was hoping the newer version flox-1.4.0 … --- ## [How do you setup rust code coverage?](https://discourse.flox.dev/t/how-do-you-setup-rust-code-coverage/1108)
**Author:** [@five-vee](https://discourse.flox.dev/u/five-vee)\ **Replies:** 2\ **Last updated:** [April 2, 2025, 4:57pm UTC](https://discourse.flox.dev/t/how-do-you-setup-rust-code-coverage/1108 "2025-04-02T16:57:38Z")
So I’m following Flox’s Rust Cookbook, and I was surprised to learn that it doesn’t support code coverage. Or, at least, not in the way I expected. Apparently, for -C instrument-coverage to work, I’ll need to have built… --- ## [Errors using Flox with Claude MCP demo](https://discourse.flox.dev/t/errors-using-flox-with-claude-mcp-demo/1111)
**Author:** [@jbayer](https://discourse.flox.dev/u/jbayer)\ **Replies:** 3\ **Last updated:** [March 31, 2025, 8:59pm UTC](https://discourse.flox.dev/t/errors-using-flox-with-claude-mcp-demo/1111 "2025-03-31T20:59:39Z")
I’m trying to run through this Claude MCP weather example on my M4 Mac. Since the example requires a newer version of python3 than my Mac has, I have used my flox default environment to install uv and python313. However,… --- ## [Can't install Flox in containerized GitHub runner: System has not been booted with systemd as init system (PID 1). Can't operate](https://discourse.flox.dev/t/cant-install-flox-in-containerized-github-runner-system-has-not-been-booted-with-systemd-as-init-system-pid-1-cant-operate/1096)
**Author:** [@jakubjanecek](https://discourse.flox.dev/u/jakubjanecek)\ **Replies:** 3\ **Last updated:** [March 4, 2025, 8:53am UTC](https://discourse.flox.dev/t/cant-install-flox-in-containerized-github-runner-system-has-not-been-booted-with-systemd-as-init-system-pid-1-cant-operate/1096 "2025-03-04T08:53:07Z")
Hello, I am trying to use Flox in our GitHub CI (on-premise) and the installation fails with the following error: “System has not been booted with systemd as init system (PID 1). Can’t operate.” The GitHub runner is a … [Next page](https://discourse.flox.dev/c/help/10.md?page=1)