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1. rebalance: a library for rebalancing investment portfolios
This is implemented with Playwright, a modern alternative to Selenium maintained by Microsoft and developers who formerly worked at Google on Puppeteer. I originally implemented it in Selenium but found that typing and button presses were inconsistent and failed too often. So far Playwright seems to be more reliable. For safety, the trading functions ask for manual confirmation (press enter) to place orders.
2. fidelipy: a library for semi-automated trading on fidelity.com
3. fi: a command-line application for managing Fidelity portfolios (uses rebalance and fidelipy)