# \#mac **URL:** https://forum.elixirforum.com/tag/mac/619.md [Latest](https://forum.elixirforum.com/latest.md) · [Categories](https://forum.elixirforum.com/categories.md) · [Tags](https://forum.elixirforum.com/tags.md) --- ## [Zest - the animated shell prompt you never knew you wanted](https://forum.elixirforum.com/t/zest-the-animated-shell-prompt-you-never-knew-you-wanted/74729)
**Author:** [@Tyson](https://forum.elixirforum.com/u/Tyson)\ **Replies:** 5\ **Last updated:** [March 21, 2026, 1:21pm UTC](https://forum.elixirforum.com/t/zest-the-animated-shell-prompt-you-never-knew-you-wanted/74729 "2026-03-21T13:21:03Z")
I know there are lot of shell-theme nerds in this group. I want to share a little something that Claude and I have been working on in our spare time. If you have min/maxed your prompt to be tiny/fast, this is not for you… --- ## ['mix ecto.create' errors with: role "postgres" does not exist](https://forum.elixirforum.com/t/mix-ecto-create-errors-with-role-postgres-does-not-exist/20624)
**Author:** [@AstonJ](https://forum.elixirforum.com/u/AstonJ)\ **Replies:** 23\ **Last updated:** [November 2, 2025, 12:16pm UTC](https://forum.elixirforum.com/t/mix-ecto-create-errors-with-role-postgres-does-not-exist/20624 "2025-11-02T12:16:02Z")
Just posting this here in case it helps anyone else in future. on mix ecto.create I was getting: 00:54:48.033 \[error\] GenServer #PID\<0.214.0\> terminating \*\* (Postgrex.Error) FATAL 28000 (invalid\_authorization\_specifica… --- ## [Erlang brew package has the JIT disabled - should it be enabled by default?](https://forum.elixirforum.com/t/erlang-brew-package-has-the-jit-disabled-should-it-be-enabled-by-default/61991)
**Author:** [@PragTob](https://forum.elixirforum.com/u/PragTob)\ **Replies:** 4\ **Last updated:** [February 6, 2025, 3:15am UTC](https://forum.elixirforum.com/t/erlang-brew-package-has-the-jit-disabled-should-it-be-enabled-by-default/61991 "2025-02-06T03:15:34Z")
:wave: Hey folks! So, this may be me not knowing how to interact with brew maintainers or Mac. It seems like current versions of erlang on brew do not have the JIT enabled, despite being 26.2.2. How do I know? Well, … --- ## [New community-maintained OTP builds for macOS](https://forum.elixirforum.com/t/new-community-maintained-otp-builds-for-macos/67338)
**Author:** [@wojtekmach](https://forum.elixirforum.com/u/wojtekmach)\ **Replies:** 5\ **Last updated:** [November 30, 2024, 12:07am UTC](https://forum.elixirforum.com/t/new-community-maintained-otp-builds-for-macos/67338 "2024-11-30T00:07:08Z")
Hey everyone, I’m happy to announce GitHub - erlef/otp\_builds: Community-maintained pre-compiled Erlang/OTP for macOS · GitHub. Example: $ url=https://github.com/erlef/otp\_builds/releases/download/OTP-27.1.2/otp-aarch6… --- ## [MacOS /usr/libexec/lsd using 100% CPU](https://forum.elixirforum.com/t/macos-usr-libexec-lsd-using-100-cpu/65113)
**Author:** [@baldmountain](https://forum.elixirforum.com/u/baldmountain)\ **Replies:** 0\ **Last updated:** [July 24, 2024, 1:53pm UTC](https://forum.elixirforum.com/t/macos-usr-libexec-lsd-using-100-cpu/65113 "2024-07-24T13:53:38Z")
My Mac has been freezing lately so I spent some time trying to figure out why. There is a system process called LaunchServiceDaemon or /usr/libexec/lsd. It was using 100% CPU. Using information from this thread: What is … --- ## [Crash dump when installing Phoenix on Mac M2: eheap\_alloc: Cannot allocate X bytes of memory (of type "heap\_frag")](https://forum.elixirforum.com/t/crash-dump-when-installing-phoenix-on-mac-m2-eheap-alloc-cannot-allocate-x-bytes-of-memory-of-type-heap-frag/62154)
**Author:** [@ericchuawc](https://forum.elixirforum.com/u/ericchuawc)\ **Replies:** 17\ **Last updated:** [April 9, 2024, 3:55pm UTC](https://forum.elixirforum.com/t/crash-dump-when-installing-phoenix-on-mac-m2-eheap-alloc-cannot-allocate-x-bytes-of-memory-of-type-heap-frag/62154 "2024-04-09T15:55:44Z")
Hi all, Before this, I have no issues install Elixir and Erlang using ASDF on my MacBook M2 (64GB RAM). But today I chose to update it, all seemed fine until I tried to install phoenix framework. I have uninstalled al… --- ## [How often do you upgrade/replace your dev machine?](https://forum.elixirforum.com/t/how-often-do-you-upgrade-replace-your-dev-machine/62338)
**Author:** [@AstonJ](https://forum.elixirforum.com/u/AstonJ)\ **Replies:** 46\ **Last updated:** [March 26, 2024, 9:45pm UTC](https://forum.elixirforum.com/t/how-often-do-you-upgrade-replace-your-dev-machine/62338 "2024-03-26T21:45:14Z")
How often do you buy a new dev machine? poll If there is any particular reason why you’ve settled on the frequency you have, please share! Other related polls that might interest you: Which operating system do you d… --- ## [ElixirLS crashing on Mac M2](https://forum.elixirforum.com/t/elixirls-crashing-on-mac-m2/61718)
**Author:** [@teatimes](https://forum.elixirforum.com/u/teatimes)\ **Replies:** 5\ **Last updated:** [February 23, 2024, 7:05pm UTC](https://forum.elixirforum.com/t/elixirls-crashing-on-mac-m2/61718 "2024-02-23T19:05:30Z")
I suddenly started having problems with ElixirLS crashing in Visual Studio Code. I ran Elixir 1.15.2 and OTP-26, and have tried to upgrade to Elixir 1.16.1, with no luck. I have installed erlang 26.2.2 and elixir 1.16.1… --- ## [Is it possible to enable the GPU on an Apple M3 Max?](https://forum.elixirforum.com/t/is-it-possible-to-enable-the-gpu-on-an-apple-m3-max/61602)
**Author:** [@hiramegl](https://forum.elixirforum.com/u/hiramegl)\ **Replies:** 4\ **Last updated:** [February 12, 2024, 4:57pm UTC](https://forum.elixirforum.com/t/is-it-possible-to-enable-the-gpu-on-an-apple-m3-max/61602 "2024-02-12T16:57:13Z")
I’ve been using livebook for a while and been playing a bit with some of the numerics libraries. Recently I bought a mac apple silicon with Apple M3 Max GPU. I wonder if is possible to enable the GPU for machine learning… --- ## [Elixir with ASDF: troubleshooting :observer.start](https://forum.elixirforum.com/t/elixir-with-asdf-troubleshooting-observer-start/28895)
**Author:** [@crisefd](https://forum.elixirforum.com/u/crisefd)\ **Replies:** 3\ **Last updated:** [February 28, 2023, 7:35pm UTC](https://forum.elixirforum.com/t/elixir-with-asdf-troubleshooting-observer-start/28895 "2023-02-28T19:35:46Z")
Hi. I recently switched computer and went from Ubuntu to OSX for Elixir. I installed Erlang/Elixir using asdf this time, but after installing I can’t start the observer in my iex session, didn’t have this problem before … --- ## [Compile error specific only for my Mac](https://forum.elixirforum.com/t/compile-error-specific-only-for-my-mac/54107)
**Author:** [@John\_Shelby](https://forum.elixirforum.com/u/John_Shelby)\ **Replies:** 2\ **Last updated:** [February 24, 2023, 3:25pm UTC](https://forum.elixirforum.com/t/compile-error-specific-only-for-my-mac/54107 "2023-02-24T15:25:13Z")
Hi, I have a problem with compiling a project on my Mac. I’m experiencing the problem through all branches that were originally executable and no changes were made to them. Suddenly everything stopped working and I hones… --- ## [Anyone received their new MacBook Pros today?](https://forum.elixirforum.com/t/anyone-received-their-new-macbook-pros-today/43404)
**Author:** [@mfilej](https://forum.elixirforum.com/u/mfilej)\ **Replies:** 15\ **Last updated:** [June 14, 2022, 2:30pm UTC](https://forum.elixirforum.com/t/anyone-received-their-new-macbook-pros-today/43404 "2022-06-14T14:30:06Z")
I think a bunch of us will be interested in hearing how the new M1 Pro/Max compare to the regular M1 when compiling and running Elixir code. If you have experienced any 2 of the 3, please share! --- ## [OTP 24 compilation error on macOS Monterey 12.3 Mac M1](https://forum.elixirforum.com/t/otp-24-compilation-error-on-macos-monterey-12-3-mac-m1/46974)
**Author:** [@rrmartins](https://forum.elixirforum.com/u/rrmartins)\ **Replies:** 2\ **Last updated:** [April 1, 2022, 11:59pm UTC](https://forum.elixirforum.com/t/otp-24-compilation-error-on-macos-monterey-12-3-mac-m1/46974 "2022-04-01T23:59:18Z")
I’m trying to install erlang version 24.2 on a macbook m1 with macOS 12.3 Monterey and I’m having this compilation error. Build failed. /bin/sh: line 1: 55135 Segmentation fault: 11 erlc -W -Werror +debug\_info -DUSE\_ES… --- ## [I need help getting this program to work going from windows to mac](https://forum.elixirforum.com/t/i-need-help-getting-this-program-to-work-going-from-windows-to-mac/46681)
**Author:** [@TinyBFG](https://forum.elixirforum.com/u/TinyBFG)\ **Replies:** 3\ **Last updated:** [March 19, 2022, 5:37am UTC](https://forum.elixirforum.com/t/i-need-help-getting-this-program-to-work-going-from-windows-to-mac/46681 "2022-03-19T05:37:31Z")
So I am making a program that sorts out video files in non-video folders and non-video files in video folders and I am done as far as I can tell but I am having issues getting the program over to the client since it uses… --- ## [Advice: Easiest way to create a basic desktop UI for an Elixir app?](https://forum.elixirforum.com/t/advice-easiest-way-to-create-a-basic-desktop-ui-for-an-elixir-app/38849)
**Author:** [@hnlprog](https://forum.elixirforum.com/u/hnlprog)\ **Replies:** 1\ **Last updated:** [April 10, 2021, 9:03am UTC](https://forum.elixirforum.com/t/advice-easiest-way-to-create-a-basic-desktop-ui-for-an-elixir-app/38849 "2021-04-10T09:03:40Z")
A beginner (of programming in general) is looking for an easy way (i.e. least new plates to handle) to implement a basic macOS UI for a local, offline Elixir app (script?). The app takes a file path (HTML file), reads i… --- ## [MacOSX 10.7 or later required for --file-events](https://forum.elixirforum.com/t/macosx-10-7-or-later-required-for-file-events/38791)
**Author:** [@Papillon6814](https://forum.elixirforum.com/u/Papillon6814)\ **Replies:** 4\ **Last updated:** [April 8, 2021, 3:24pm UTC](https://forum.elixirforum.com/t/macosx-10-7-or-later-required-for-file-events/38791 "2021-04-08T15:24:45Z")
Hello. When I start a phoenix server with mix phx.server, my terminal shows this. MacOSX 10.7 or later required for --file-events \[info\] Running PappapWeb.Endpoint with cowboy 2.8.0 at 0.0.0.0:4001 (http) \[info\] Access… --- ## [Setting Up a Development Environment with VMs](https://forum.elixirforum.com/t/setting-up-a-development-environment-with-vms/37950)
**Author:** [@amnu3387](https://forum.elixirforum.com/u/amnu3387)\ **Replies:** 0\ **Last updated:** [March 4, 2021, 2:37pm UTC](https://forum.elixirforum.com/t/setting-up-a-development-environment-with-vms/37950 "2021-03-04T14:37:32Z")
Hi, I’ve just published a guide for setting up a development environment for Elixir/Erlang using VMs. This is done in macOS but the guide should be almost 100% usable in any system that can run VMs with any VM hosting a… --- ## [Cannot start observer on macOS](https://forum.elixirforum.com/t/cannot-start-observer-on-macos/36431)
**Author:** [@vlttnv](https://forum.elixirforum.com/u/vlttnv)\ **Replies:** 4\ **Last updated:** [February 23, 2021, 11:29pm UTC](https://forum.elixirforum.com/t/cannot-start-observer-on-macos/36431 "2021-02-23T23:29:51Z")
Hello. I am following the OTP and Mix tutorial and I got to the step where I need to start the observer using :observer.start. I am currently getting the following error: Could not find 'wxe\_driver.so' in: /Users/valio… --- ## [Error mix deps.get in Mac](https://forum.elixirforum.com/t/error-mix-deps-get-in-mac/24943)
**Author:** [@Fl4m3Ph03n1x](https://forum.elixirforum.com/u/Fl4m3Ph03n1x)\ **Replies:** 6\ **Last updated:** [June 30, 2020, 6:51pm UTC](https://forum.elixirforum.com/t/error-mix-deps-get-in-mac/24943 "2020-06-30T18:51:55Z")
Background I have a project that needs to run on a Mac machine. I have installed erlang 22.0 and Elixir 1.7.0 using asdf and I have tried to install the dependencies using mix deps.get. Problem However when I try to run… --- ## [Elixir and Mac OS - anyone noticed a drop in performance?](https://forum.elixirforum.com/t/elixir-and-mac-os-anyone-noticed-a-drop-in-performance/26095)
**Author:** [@lgp](https://forum.elixirforum.com/u/lgp)\ **Replies:** 23\ **Last updated:** [April 30, 2020, 4:00am UTC](https://forum.elixirforum.com/t/elixir-and-mac-os-anyone-noticed-a-drop-in-performance/26095 "2020-04-30T04:00:50Z")
Has anyone else noticed a sharp drop in Elixir performance on MacOS over the past couple of years? The problem really seems to be in startup time rather than actual execution time. I don’t remember the Elixir version or … --- ## [6-core mac mini for Elixir development?](https://forum.elixirforum.com/t/6-core-mac-mini-for-elixir-development/28096)
**Author:** [@jononomo](https://forum.elixirforum.com/u/jononomo)\ **Replies:** 3\ **Last updated:** [January 8, 2020, 12:57pm UTC](https://forum.elixirforum.com/t/6-core-mac-mini-for-elixir-development/28096 "2020-01-08T12:57:55Z")
I’m about to dive into Elixir for a few months – I’d like to thoroughly learn the language and the ecosystem and I’m wondering whether I could benefit from a 6-core mac mini as opposed to the 4-core less expensive model.… --- ## [Mac Users Thread](https://forum.elixirforum.com/t/mac-users-thread/24464)
**Author:** [@AstonJ](https://forum.elixirforum.com/u/AstonJ)\ **Replies:** 117\ **Last updated:** [December 2, 2019, 2:23am UTC](https://forum.elixirforum.com/t/mac-users-thread/24464 "2019-12-02T02:23:32Z")
Welcome to our thread for Mac users :smiley: Windows users please use this thread Linux users please use this thread For those who dislike one platform or another, maybe post those thoughts on Reddit, or somewhere sim… --- ## [Step by step guide on setting up an Elixir dev environment on macOS Catalina](https://forum.elixirforum.com/t/step-by-step-guide-on-setting-up-an-elixir-dev-environment-on-macos-catalina/27239)
**Author:** [@AstonJ](https://forum.elixirforum.com/u/AstonJ)\ **Replies:** 0\ **Last updated:** [December 1, 2019, 9:01pm UTC](https://forum.elixirforum.com/t/step-by-step-guide-on-setting-up-an-elixir-dev-environment-on-macos-catalina/27239 "2019-12-01T21:01:51Z")
We used to have a lot of guides like this in Ruby and I don’t see many of them around these days. I think this is because fewer and fewer people do fresh installs (because Apple made it hard, so most people use Migratio… --- ## [FYI: Macbook Pro 15" 2015 battery recall (some units)](https://forum.elixirforum.com/t/fyi-macbook-pro-15-2015-battery-recall-some-units/23448)
**Author:** [@outlog](https://forum.elixirforum.com/u/outlog)\ **Replies:** 0\ **Last updated:** [June 27, 2019, 3:26pm UTC](https://forum.elixirforum.com/t/fyi-macbook-pro-15-2015-battery-recall-some-units/23448 "2019-06-27T15:26:49Z")
Just a service notice to those of us on the MBP 2015 15" - stay safe and maybe get a new battery: Apple has determined that, in a limited number of older generation 15-inch MacBook Pro units, the battery may overheat a… --- ## [Erlang \> 19 stopped working on mac](https://forum.elixirforum.com/t/erlang-19-stopped-working-on-mac/22896)
**Author:** [@quatermain](https://forum.elixirforum.com/u/quatermain)\ **Replies:** 20\ **Last updated:** [June 5, 2019, 11:46am UTC](https://forum.elixirforum.com/t/erlang-19-stopped-working-on-mac/22896 "2019-06-05T11:46:11Z")
Hi, I used to use erlang/elixir installed by homebrew and kiex on my mac. But couple of days ago it stoped working. I tried uninstall everything and install it again. It didn’t help. Right now I tried asdf and same is… --- ## [Apple launches new MacBook Air and Mac Mini (and iPad Pro!)](https://forum.elixirforum.com/t/apple-launches-new-macbook-air-and-mac-mini-and-ipad-pro/17616)
**Author:** [@AstonJ](https://forum.elixirforum.com/u/AstonJ)\ **Replies:** 78\ **Last updated:** [December 2, 2018, 7:58pm UTC](https://forum.elixirforum.com/t/apple-launches-new-macbook-air-and-mac-mini-and-ipad-pro/17616 "2018-12-02T19:58:35Z")
https://www.apple.com/apple-events/livestream/ Both the Air and Mini look really nice!! Anyone getting one? :101: --- ## [Observer error when kill](https://forum.elixirforum.com/t/observer-error-when-kill/17606)
**Author:** [@dmartins](https://forum.elixirforum.com/u/dmartins)\ **Replies:** 2\ **Last updated:** [October 30, 2018, 1:26am UTC](https://forum.elixirforum.com/t/observer-error-when-kill/17606 "2018-10-30T01:26:32Z")
Hi, I’m learning Elixir. I’m on Mac OS. I’m playing around with observer and trying to visualize how supervisors handle killed processes they supervise. When I launch iex and run :observer.start() and look at the applic… --- ## [32 GB MacBook Pros are out!](https://forum.elixirforum.com/t/32-gb-macbook-pros-are-out/15118)
**Author:** [@andre1sk](https://forum.elixirforum.com/u/andre1sk)\ **Replies:** 27\ **Last updated:** [July 24, 2018, 7:59am UTC](https://forum.elixirforum.com/t/32-gb-macbook-pros-are-out/15118 "2018-07-24T07:59:03Z")
15-Inch MacBook Pro Highlights: 6-core Intel Core i7 and Core i9 processors up to 2.9 GHz with Turbo Boost up to 4.8 GHz Up to 32GB of DDR4 memory Powerful Radeon Pro discrete graphics with 4GB of video memory in ever… --- ## [Problems deploying to Digital Ocean droplet running Ubuntu 16.04 from Mac](https://forum.elixirforum.com/t/problems-deploying-to-digital-ocean-droplet-running-ubuntu-16-04-from-mac/14141)
**Author:** [@JoeZMar](https://forum.elixirforum.com/u/JoeZMar)\ **Replies:** 4\ **Last updated:** [May 11, 2018, 5:51am UTC](https://forum.elixirforum.com/t/problems-deploying-to-digital-ocean-droplet-running-ubuntu-16-04-from-mac/14141 "2018-05-11T05:51:38Z")
I am trying to deploy my first Phoenix app to a Digital Ocean droplet. My local machine is a Mac running Unix and the Digital Ocean droplet is Ubuntu 16.04. I have been following this guide I can make it all the way th…