I have a few infrastructure apps that I have started but not finished (ie 90-95%+ complete - I get bored easily)! Such as... 1. Market and transaction data database (rdbms support ms sql server, oracle, mysql, firebird, postgres..) 2. REST API and Market Data Downloader for above rdbms 3. Trading Decision Support System (ie issues and automatically journals trading advisory instruction based on your trading algorithm/strategy building an extra level of discipline and rigor into your trading) 4. Visual Trade Order Management software - an agile trade management tool designed to help coordinate and visualize trades, manage trades-in-progress, maximize trade flow and reduce risk using coloured building blocks. 5. Trading Dashboard 6. Trade book-keeping app for the above transaction database I was looking to integrate all the above into one app but want to get stuff finished now. Which ones if any of the above would be the most useful to get out first for others to use? I can add a bit more info if needed but have no documentation yet (one of the things that need finishing! ).