Hello Anouar, I have + 10 years of experience in web development, YES, I have hands on experience about Omeka CMS.
I am sure I can help you perfectly, because I have completed lots of projects successfully until now.
I am ready to start working for you, please share me your detail.
Looking forward to hearing from you.
Thank you.
PS: because I don't know your detail, so budget and deadline is placed holders.