Hey guys, we are building a DEX for trading synthetic assets on Tezos. You can check out a preview of SEXP Binary Options on Youtube  can also try it yourself.The preview Florence testnet build is running at:  you'll need a Tezos wallet (we recommend Temple or Kukai). Then you should get Florence test coins from @tezos_faucet_bot on Telegram and test kUSD from  kUSD is a stablecoin like DAI in Ethereum. Then you can use kUSD to test trading in SEXP Binary Options.Links to wallets:Temple wallet:  wallet:  Kukai you can log in with Twitter)Details about how it's built:
The smart contracts are written in Michelson, the low level assembly like language of Tezos smart contracts. There are also more high level languages available, that look like Python (SmartPy) or OCaml (LIGO). The advantage of using Michelson is lower complexity of the compiler stack and better gas efficiency.For the web app we are using Svelte. Interaction with wallets is via Beacon SDK, the app can request that a user sign a transaction, and the wallet presents a confirmation dialog.We use the TZKT and Better Call Dev (BCD) indexers for most of the requests and are querying a tezos-node RPC API directly for the balances.The sources are available here:

 free to ask any questions if you are curious about the technical details.Our main website is:  Telegram channel is:  us on Twitter:  are running a presale of SEXP token until May 17th 16:00 UTC:  guides showing how to contribute with the most common Tezos wallets are provided at the presale page.