I think it's extremely important for folks over 40 to track their accomplishments.

Their resumes are longer, their skills can be older, some of the companies they've worked for might not even exist anymore. It's even more important to be able to search/narrow down/focus your decades of experience/accomplishments to those that matter in this new ageist landscape.

And the truth is, you've probably done whatever SV recruiters/managers say you require. You've been the self-starting, chaos riding, new tech stack conquering machine. You've lived at the cutting edge. It's just not on your resume, and you don't bring it up in interviews because you haven't been that person in a while and all your (maybe) recent job search experience is in displaying the breadth and length of your career.

It's tough.