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What's in store for 2024

· 8 min read
Miles Johnson
Founder, developer

Happy new year! Let's start 2024 by reflecting on last year and diving into our tentative year long roadmap.

Year 2023 in review

Last year was an extremely exciting year for us! To start, we were accepted into the Y Combinator 2023 winter batch, which was extremely unexpected, but very much welcome. The 3 months we spent in YC was quite eye opening, as we learned so much about the industry, and how to move forward. We spent those 3 months really diving into what we want to build and deliver, and after much trial and error, and many failed prototypes, we chose to move forward with launching proto as its own tool, improving moon, and slowing down development of moonbase (outside of remote caching).


For moon, we officially launched v1 back in March, and celebrated its 2 year birthday in October. Over the course of 2023, we released 23 minor versions, jam packed with new features such as:

  • Action and project graphs improvements
  • Bun tier 1, 2, and 3 support
  • Canary & nightly releases
  • Code ownership (CODEOWNERS)
  • Configuration rewrite (using our schematic crate)
  • Deno tier 1 and 2 support
  • Developer experience improvements
  • Documentation polish
  • Experiments
  • Interactive & persistent tasks
  • JavaScript and TypeScript improvements
  • Onboarding flow improvements
  • PATH based task execution
  • proto integration
  • Query language
  • Railway support
  • Rust tier 1, 2, and 3 support
  • Tagging and boundaries/contraints
  • Task extending, inheritance, and configuration enhancements
  • Task dependencies configurations
  • Toolchain enhancements
  • VCS (Git) hooks
  • ... and much much more!

However, when looking at our 2023 roadmap, there are a few items we failed to deliver on. The biggest are additional languages, better tier support, and release workflows. We ultimately didn't land these features as we plan to move to a plugin based architecture, and didn't want to invest too much time into the current implementation.


During YC, we officially launched moonbase, our cloud service that offers remote caching to all moon users (and also includes a free tier). Over the next few months, we continued to improve the service, by adding basic insights into CI runs (powered by moon ci), and overall stability.

However, we unfortunately made the decision to pause development of new features for moonbase, as we were unsure of the value that they would provide to end-users compared to the cost it would take to build & maintain. Some such features include code and project ownership, project registry, and repository health scores. We may revisit this in the future.


As for proto, it's been an exciting year. For context, proto's implementation was originally built into moon directly, and powered moon's integrated toolchain. We strongly felt this functionality can be useful as a stand-alone tool, as tool installation and developer environment setup is still a major pain point for developers.

So we decided to extract it out into its own tool, and thus proto was born. Since then, we've released 27 minor versions with:

  • Additional language support: Go, Python
  • Binary symlinking
  • Canary & nightly releases
  • Detection improvements
  • Directory-level configuration
  • Deeper shell integration
  • Global packages support
  • Native shim executables
  • Runtime version detection
  • WASM and TOML based plugins
  • ... and more to come!

Launching moon v2

It's been almost a year since we launched v1, and we believe we're ready to start planning out and working on v2. Our goal for major releases is to introduce breaking changes in the most seamless way possible, and to do so, we plan to incrementally land internal changes in v1 in preparation for v2, provide codemods for migrating configuration, and of course, provide an in-depth migration guide.

In order of importance, we plan to land the following changes. This list does not include features that will land after v2.

It's a short list but also a ton of work. We have no ETA on when this will land exactly.

Plugin based architecture

The biggest change and primary focus for v2 is to move to a WASM plugin based architecture (for language integration). Based on our work with proto's plugins, we have a very good idea of how we would model this for moon, and a new love for WASM based plugins (powered by Extism).

One of the leading factors for this decision, is that building everything into Rust directly is not scalable, is a maintenance headache, and is also extremely difficult. It results in a lot of duplicated code, increased compilation times, and a lot of complexity. By moving to plugins, we can ditch most of this, and in the grand scheme of things, plugin integration is simply function calls.

Of course there are a handful of additional benefits that come from plugins:

  • Enables the community to build and share their own plugins (additional languages).
  • Plugins can be individually updated, versioned, and released. Less moon patches.
  • Reduces moon's compilation times, as plugins live in their own repositories.
  • Easier to contribute to, as moon's codebase is quite complex.

Post-launch features

Curious what kind of features we have planned for after v2? Of course you are! This isn't an exhaustive or detailed list, but is top of mind:

  • Additional languages support (will be much easier with a plugin system)
  • Release workflows (versioning, publishing, changelogs, etc)
  • System dependencies within the toolchain
  • Language dependency management tools
  • Repository and project health scores
  • Improved action graph and pipeline

Launching proto v1

We're extremely close to a v1 release, most definitely in Q1. For the most part, we believe we're passed the point of introducing breaking changes, and so the remainder of the time will be spent on polish, improvements, and documentation. There are a few big features we want to land relatively soon though (but maybe after v1), and they are:

  • Build from source for languages (this is quite complicated)
  • Build/extension variants for languages (PyPy for Python, PHP extensions, etc)
  • Directory and tool level environment variables (think direnv kind of functionality)

Expanding language support

While not part of v1, we definitely want to support more official languages in proto. We've been pushing back on new languages until after v1 and the plugin APIs have stabilized, but since that's relatively close to being done, expect more in the future! Our top of mind languages at the moment are: Ruby (and Crystal), PHP, and Java.

Don't forget that the community can also build and share their own plugins! For example, the Zig programming language already exists, and is provided by konomae! Thanks for the amazing work.

Self-hosting moonbase

And last but not least, let's talk about moonbase. Although we've paused development on new features, we consistently get requests for self-hosting moonbase (primarily for remote caching), as companies don't want to store their proprietary builds, even though they are compiled and minified, in a cloud storage provider that they do not own.

We definitely understand this concern, and that's why we've been working on a self-hosted version of moonbase (also known as on-premises). We've never done this before, so it's been quite a learning lesson, especially since we have many facets to take into account: database access, cloud credentials, error handling, auth, so on and so forth.

We'd say we're about 50% done with this effort, and we aim to have it ready by the end of Q1. With that said, the self-hosted version of moonbase will not be free, and will use a license based model. We're still working out the details, but we'll have more information soon.

Looking for contributors

Thanks for reading this far, but we do have one last thing to talk about. The moonrepo ecosystem and all its products are quite large, with a lot of complexity. However, we're a small team, with most of the public-facing work being done by me (Miles), but there's only so much we can do in a given timeframe. With that said, we're looking for open source contributors that would like to help us out! We have a long list of features and enhancements that need to be done, and even some secret projects that would be very cool to work on. If you're interested, please reach out to us on Discord!