Hi, I spent the last 2. 5 years building a super detailed financial planning tool called FinZot (US focused). It helps with questions like deciding when to retire, how much to spend in retirement, how to optimize taxes.
Source: [Hacker News](https://app.finzot.com/plan/6VXFMte2tRMp81sRKhYgXM/results/net-worth)