devbox VS asdf

Before I went on my Christmas vacation last year I wrote an article on how I use Nix in my Elm projects. At the time, I was pleased with my set up. However, not even a month would go by before my satisfaction was questioned. In early January, Carlo Ascani asked a question, on the Elm Discourse, about his Umbra project. I decided to explore his project and I soon discovered two files, devbox.json and devbox.lock, I had never seen before. This piqued my curiosity and I had to learn more. I followed the link to the Devbox website and feverishly read the docs. I... was... hooked. I was pleasantly surprised by its simplicity and it seemed to fit my use cases really well.

How does Flox compare to Devbox? https://github.com/jetpack-io/devbox

I've spent the last year managing all my packages with Devbox (https://github.com/jetpack-io/devbox).

Local dev, cloud dev, CI, production – all with the same config file. Fingers crossed my talk submission for PackagingCon gets accepted. It'd be awesome to share this new way of working with a wider audience.

> Now to figure out what a "flake" is…

Flake is a worthwhile addition to Nix that is worth learning. But like anything Nixian, it's not straightforward.

Have you checked out any of the tools that aim to simplify Nix experience? We built Devbox (https://github.com/jetpack-io/devbox) with this in mind.

Also devbox ( https://github.com/jetpack-io/devbox ) which is what this is for does not work on windows because of its Nix dependency.

For these reasons, I believe most developer environments should prioritize developer experience over fidelity. Tools like Containerized development environments and cloud emulators can strike the right balance and there’s no surprise that we see increased activity around devcontainers, and similar solutions.

Local first, cloud optional is the only way (IMHO) we're going to get people off their local laptop development setups.

We need to support local dev environments first, with the exact same config a developer can then move to the cloud.

See https://github.com/jetpack-io/devbox for how this can be achieved and https://www.mikenikles.com/blog/dev-environments-in-the-clou... for my thoughts after 3 years of working in this space.

If you like the properties of Nix, but find it confusing, you should check out Devbox! It simplifies the process of creating Nix-powered dev environments:

https://github.com/jetpack-io/devbox

As part of the work we've been doing with [devbox](https://github.com/jetpack-io/devbox), we needed a unit testing framework to test some of our nix code. Unfortunately we had some use cases where we did *not* want to introduce a dependency on `nixpkgs` (and therefore we couldn't use `runTests`).

The main issue most people have with asdf is that it’s annoyingly slow. Not unusably so, but just enough that it’s irritating.

I identified [0] the source for much of it (sub-shells and pipes) and began a PR [1], but became bogged down with BATS testing, and then found mise / rtx, so kind of lost interest. Sorry. You can always implement these if you’d like.

[0]: https://github.com/asdf-vm/asdf/issues/290#issuecomment-1383...

[1]: https://github.com/asdf-vm/asdf/pull/1441

Or if you need to manage more than just node, asdf has been around for over a decade and works great. You can use a .tool-versions to change runtimes for each project you have, in addition to managing your global runtime versions

https://asdf-vm.com/

Why not just use a tool like asdf (https://asdf-vm.com/) or mise (https://mise.jdx.dev/)?

These tools have the advantage of not being multi-taskers and can manage version for all your tools. You wouldn’t need pyenv and npm and rvm and…

We’ve even started committing the .mise.toml files for projects to our repos. That way, since we work on multiple projects that may need multiple versions of the same tool, it’s handled and documented.

The purpose of a version manager is to help you navigate or install any tools for development easily. Version Manager can be one tool for each dependency (e.g. NVM, g) or One tool for all dependencies (e.g. asdf, mise).

(asdf)[https://asdf-vm.com/] fully supports Python and almost any other language. I've been using it for Ruby, Python, Elixir, and other languages for years and never looked back.

Secondly, our development environments must not drift, because then code may behave differently and a change could pass on our machine but fail in production. There are many tools for locking down environments, e.g nix, pkgx, asdf, containers, etc., and they all share the common goal of being able to lock down dependencies for an environment accurately and deterministically. And that needs to be enforced in our local workflow so we don't have to rely on CI environments for correctness. All developers must have environments that are effectively identical to what runs in CI (which itself should be representative of the production environment).

There are many ways this can be done (e.g nix, pkgx, asdf, containers, etc.), and we won’t get into which specific tools to use, because we'll instead cover the essential essence of preventing environment drift: