It looks like Guarda wallet is mainly closed-source. Only certain components are open-source, not its core wallet. In which case, you might want to consider other alternatives.

What cryptocurrencies do you have, by the way? The most reputable hot wallets I know are normally Bitcoin-focused. Are you open for maintaining at least 2 wallets? Electrum and Mycelium, for example, for your Bitcoin and certain altcoins, respectively?

By the way, what will happen to trading efficiently? Would you be taking out your coins every filled order?