PJUllrich
Author of Building Table Views with Phoenix LiveView
A Devcontainer for Elixir
I built a devcontainer that makes it safe(-er) to run Claude Code in YOLO mode (--dangerously-skip-permissions) on Elixir&Phoenix projects and it comes with Tidewave built-in. It’s based on Anthropic’s reference but made safer and tailored to Elixir.
The container makes it safe(-er) to run Claude with --dangerously-skip-permissions by:
- Restricting all outbound traffic to a domain allowlist via a strict network firewall using the battle-tested Squid proxy
- Hiding sensitive files (e.g.
.env) from Claude using file permissions, with Claude deny rules as a secondary safeguard.- These files and folders are simply empty in your devcontainer. No more uploading
.envfiles to Claude by accident!
- These files and folders are simply empty in your devcontainer. No more uploading
- Isolating Claude state in a per-project
.claudefolder, separate from your host’s~/.claude
It has a few quality-of-life features as well, like:
- a Makefile with extensive commands to control the devcontainer (e.g.
make dc.up|down|rebuild) and to start services in it (e.g.make dc.tidewave|server|claude) - Git and Git Worktree support, so you can run multiple Claude Code instances in parallel in the same container
- Oh-my-Zsh with git status, tab completion, and fancy colors
Try it out here:
Popular in Dev Env & Tools
I am author of SpaceVim, As you know SpaceVim is a vim config which provide layer feature.
https://github.com/SpaceVim/SpaceVim
I want ...
New
Welcome to our thread for Windows users :smiley:
Mac users please use this thread
Linux users please use this thread
For those who dis...
New
For the people who are using VS code what extensions are you using?
New
With this week’s release, ElixirLS bundles an experimental MCP Server. (see CHANGELOG)
Highlights
Added Call hierarchy provider imple...
New
While on the theme of routers:
Is your computer's internet connection wired or wireless? (Poll)
Which router do you use?
How do you se...
New
The Applications tab in Observer displays a diagram of running applications and supervision trees. This is a really impressive capability...
New
If it’s useful to anyone, here’s a tiny nvim plugin (jpease/hex-outdated.nvim) that shows drift between your mix.exs and packages on hex....
New
Other popular topics
Hi!
In PHP: $_SERVER[‘SERVER_ADDR’] - in Elixir?
Searched the docs for ip address and the web, no good results.
Thanks!
New
Hello, how can I check the Phoenix version ?
Thanks !
New
I have seen a lot of code which picks the first element from a list using Enum.at(0) instead of List.first. Is there a reason why people ...
New
I am trying to figure out how Mix knows whether the environment is test, dev, or prod – where is this set?
Thanks.
New
I have an umbrella app.
Some of the apps inside depend on other apps in the umbrella, unsurprisingly.
I’m writing a test for one of the...
New
i’m a new one to elixir
which editor can i use
vs code? or atom?
Thanks! :smiley:
New
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #deployment
- #library
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #channels
- #elixirconf
- #exunit
- #discussion
- #code-sync
- #javascript
- #podcasts
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ecto-query
- #elixir-ls
- #phoenix_html
- #iex
- #blog-post
- #graphql
- #genstage
- #ai
- #websockets
- #supervisor
- #elixirconf-us
- #advent-of-code
- #distillery
- #processes
- #api
- #forms
- #metaprogramming
- #security
- #hex









