#wwdcstudents might be a bit more popular than Speaking.io. We know about 2 links to it since March 2021 and only 2 links to Speaking.io. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
A youtube course will not be as helpful as really talking in front of people. At the end of speaking.io there is a great video on public speaking. Additionally, you can try courses on Udemy (there are a lot). Source: over 2 years ago
Ps - in addition to Seth Godin's advice, I got a lot of value out of this: https://speaking.io/. Source: about 3 years ago
The official WWDC repository containing all past challenge entries: https://github.com/wwdc Always great to go through these for inspiration. Source: about 1 year ago
You can start from these templates for Playground (https://developer.apple.com/tutorials/sample-apps) and you can take a look at other entrants' projects. (https://github.com/wwdc). Source: about 1 year ago
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