Develop a PoW Blockchain

We have to create a PoW Blockchain with the requiremend that it is possible to mine with small CPU devices (also with raspberry) and also that the miners can build there own nodes and masternodes easy with a github respority.
The mining software we need for lunix and windows.
the usecases for the blockchain will be:
decentralized messenger
cryptocurrencies
own DEX
metaverse

importend is a fast transactionspeed
ED25519 encryption if possible
it have to be also possible to generate new tokens and new usescases with smartcontracts
we also need Bridges to other blockchains
the chain have a own coin and 1 utilitytoken for the beginning.

So the first part what we need now is:
develop the chain
develop the mining in the chain
develop a miningpool and the miningsoftware for linux and windows
make the miningpool website
make the blookbookwebsite
make a walletadress generator
make a possibility that we can display the chain (also the coin and the token - also all tokens there will come later) in a wallet, we allready have a multichainwallet
generating the coin
generating the token
FIRST ALL IN A TESTNET AND AFTER TESTING TIME SET ALL IN THE MAINNET