What functionalities did you most often have to provide?
What was this project?
What was the biggest challenge for the client?
It would be great to get an answer from experienced developers to the above questions 
Hey @MichalWeb3Dev,
Thanks for reaching out 
This question seems to be something oriented more towards the community where you can talk to other web3 developers for advice. I recommend you go to our Discord Server https://moralis.io/discord for that