Start working on a side project and write about it. Then submit your post(s) to the relevant places like Product Hunt, Hacker News, relevant sub-reddit, etc. T

Start working on a side project and write about it. Then submit your post(s) to the relevant places like Product Hunt, Hacker News, relevant sub-reddit, etc. This a) makes you start producing something, b) gets you to start "marketing it", c) allows some people to notice what you are doing and potentially start chatting with you about it, and d) is focused on producing rather than "collaborating".