At Hublo, we work with SvelteKit. Before starting my new job, I had to learn this framework.

One of the best ways to do so, is also by contributing on Open Source projects. IMO, the smaller, the better! (again)

Radiofrance svelte-youtube-lite

My goal was to find a small open-source project using Svelte, in order to try to contribute in there.

I already did a small website, this time I wanted to make something a little bit more technical.

I stumbled upon this Radiofrance's project by navigating on Github.

svelte-youtube-lite is "a simple svelte component for creating YouTube embeds with a focus on performance and privacy (GDPR compliant).".

Around that time, Svelte 5 had just been released, and I thought submitting a PR to migrate the project from Svelte 4 to Svelte 5 would be a great way to contribute.

This is basically what I did in this PR.

Migration script

To be honest, I didn’t have to do much 😉

Indeed, Svelte provides a powerful migration script:

$ npx sv migrate svelte-5

In most cases, you just need to review the comments left by the script and handle any necessary manual adjustments.

Playwright

However, to be sure that my migration was OK, I wrote before the migration some tests.

This ensures that the migration didn't break anything on the component behavior.

This contribution was a lot of fun, especially because the Radiofrance maintainer was quick to review my PR.

Seeing the project reach version 1.0.0 after my PR was far beyond what I expected!