Would start by researching what people do/don't like about Bloomberg terminal and the competing platforms. They effectively have a monopoly on the market due to the internal chat feature but several companies have tried to launch more feature rich competitive products with cleaner UI, etc. with some mixed success.
Would use a capability based routers so you can use a blend of OSS models. I.e. use the least capable model per prompt that includes the appropriate tooling capability, etc. Can even include a frontier provider subscription and get almost as many tokens at very close to the benchmarking on a $20/mo subscription as a $200/mo subscription. Easier with Claude's bearer token setup but I have seen people do it with OpenAI subscriptions as well.
Environment doesn't impose stress on us. Our reaction to it does. Learn to control that response, can use it to your advantage when you choose to let it in.