[stefanheule]

Thank you!

1. It's a good question, I don't think we have really looked into this, so honestly I can say much. But worth of further investigation on our side!

2. It turns out that we need a number of features (investment account, checking account with debit card, etc, ability to spend money against your investments, and a few more), and there are not too many players left that we could build on top of. So it was process of elimination mostly.

3. We haven't, this is our first big public launch.

4. We are built on AWS using lambdas and DynamoDB. We are using Typescript as our main programming language, both in the front-end and backend, which is very convenient, especially since we are using a monorepo. Makes code-sharing very easy. Our frontend is built using React.

[Straw]

Can't you effectively buy varying levels of deposit insurance by purchasing puts on the underlying portfolio?

Pay X% to limit your maximum losses in a year to Y.

For example, right now you can buy yearlong puts on SPY at a strike price of $260 (58% of the current value) for 1% of the current price.

[vineyardmike]

> We are using Typescript as our main programming language

How are you managing financial numbers safely in TS? Any library to ensure its "safe"?

[stefanheule]

I won't lie, this is not my favorite aspect, but the only way to do it is have numbers be represented as a string (e.g. "10.128") and use a library to manipulate them. The number type unfortunately just does not work.