What's the biggest problem you encounter when developing Dapp?

I am wondering what's the main problem Dapp(Decentralized App) developers are facing. I have developed crypto wallet app for Dapp, and I hope I can do something to help them. I have already collected some:

1. Support many wallets(MetaMask, Ledger, Trezor, Mobile Wallets, Wallet Connect, etc.)
2. Ask users to install wallets
3. Manage user wallets by yourself(I see some Dapp don't like to use 3rd party wallet)
4. Support different chains(Ethereum, EOS, TRON, etc.)
5. Test and deploy smart contract
6. Other

Comments

[danielnovichkov]

What about marketing your dapp among users? No problem?