Normally the only known way to do something from the browser with crypto is by using metamask... However this could change. Someone is building an alternative called Tally. However I kinda question the chosen architecture. I don't think redux is the right way to go. Modifying state with redux could go extremely wrong is not done properly. Also they are using webpack as the bundler for all the JS code. I would suggest to go with rollup... But... Finally ReactJS on the frontend. I guess that is ok but, as a dev looking and striving for performance I would potentially suggest to go with Svelte so you don't have to rely on virtual Dom and such which could end in runtime issues. The good choice would be to use Typescript for making sure that everything is completely right and fully unit tested ( static, integration and end to end). We are dealing with crypto so it needs to be 100% safe, so 100% code coverage. Sorry, but I really mean this. And More info at: tally.cash #cryptocurrency #randomthoughts #cryptotrading #web3