Note this email from Ed Corbett, whose app/url I find indispensible:

On Tue, Sep 3, 2019 at 9:46 AM Edward J. Corbett <> wrote:

Hi Jacqueline,

I'm a long time San Francisco Bay sailor, starting with my days
at the Cal Sailing Club. Technically, I am a computer science professor,
but the page is just a hobby, as a service to all us sailors.

Thank you, Ed!

Save this, you'll thank Ed for it: