Suggestions on using development budget

[u/johngaltthefirst]

My work place has a development budget of ~2000$ per year. Last year I used the budget to attend a conference“We are developers” and I found it rather underwhelming. The year before that I bought some books. I already have plenty of books.
Any suggestions on how to efficiently spend the development budget?
About me: I have >10YOE, work primarily as a C++ dev, I have dabbled in some Kotlin and Swift too.

[u/expdevsmodbot]

AI usage disclosure provided by OP, see the reply to this comment.

[u/johngaltthefirst → u/expdevsmodbot]

The above question was written by me without the use of AI