If you sign again with the same email it may override it. Not sure. But that would be a cool behavior.

It’s been a while I haven’t looked at the code. If you are a developer or know one, please invite them to join. I could use some help to maintain this free project. 

Thank you for the comment. I will try that 

Did not work 

Just gave me "you already signed this open letter"

Unfortunately I do not know any coders 

Ah bummer. Thanks for trying.
Send me your updated occupation with some kind of proof (link to a LinkedIn or website) and I’ll edit it in the database.