This is a pretty cool website with lots of YouTube clips from TED talks, documentaries, etc. that show the pronunciation of each word in real-usage context. (It also shows the IPA in many cases, though not for "hacker" for some reason.)
They also have it for a bunch of other languages, eg.
They also have it for a bunch of other languages, eg.
https://youglish.com/french
https://youglish.com/chinese
https://youglish.com/spanish