I learned about Luau via my 13 years old who is looking into Roblox Studio. That's how I ended up visiting luau.org and I'm quite impressed by Roblox's engineering on this.
Arseny Kapoulkine is an amazing engineer. Highly recommend following his blog or social media. Other than working on luau and the rendering engine at Roblox, he's also responsible for meshoptimizer which if you're in graphics you've most definitely heard of, and volk, which now comes packaged with the Vulkan SDK.