Show the proof of the service experience over using developing market and create the thread on service section to make visibility among the users.
This will ensure to get the work very fast.
Make one designed thread with your portfolio and the reasons to choose you.
Good point but unfortunately I don't have so much free time. I am looking for new customers and I am willing to show them in private all that it is needed.
Give or take, besides my own projects posted on github, it is widely not accepted to speak about projects I have done and ongoing, this can demage massively the funding or sales of that respective work.