Atmos in the Browser

[Francisco Sant'anna]

Hello,

It is now possible to try Atmos in the browser:

https://www.dev.ceu-lang.org/atmos/try/atmos/index-main.html

The idea is to create a tutorial like the one for Céu:

https://www.ceu-lang.org/try.php

This new version uses wasmoon [1] and runs programs on the client side.

[1]: https://github.com/ceifa/wasmoon

Feedback is welcome.

Francisco

[Job van der Zwan]

Nice start!

It seems a bit buggy at the moment though: I tried copying and running a few examples from https://github.com/atmos-lang/atmos/blob/main/doc/guide.md. 

- The first example I copied and pasted ran just fine.

- I tried running a second one after the first was finished. It did not run at all.

- I then refreshed the page, it remembered the second I pasted in the text area, and automatically ran it.

- I removed the text, did not click "Run", refreshed again, the textarea remained empty but it still ran the second example.

- put back the second example but changed some values, did not click "Run", refreshed again, textarea remembered modified example, but output ran the unmodified text.

So there seems to be something funny going on with persistent state and hitting the "Run" button, and it's consistent across the browsers I tried.

On Friday, 27 February 2026 at 10:39:07 UTC+1 Francisco Sant'Anna wrote:

Hello,

It is now possible to try Atmos in the browser:

https://www.dev.ceu-lang.org/atmos/try/atmos/index-main.html

The idea is to create a tutorial like the one for Céu:

https://wis ww.ceu-lang.org/try.php

[Francisco Sant'anna]

Hi Job,

On Tue, Mar 24, 2026 at 10:29 AM Job van der Zwan <j.l.van...@gmail.com> wrote:

It seems a bit buggy at the moment though: I tried copying and running a few examples from https://github.com/atmos-lang/atmos/blob/main/doc/guide.md. 

I'm about to release v0.6.

This problem should be fixed now:

https://www.ceu-lang.org/atmos/try/v0.6/atmos/index.html

Francisco