Side project I made after leaving a large company; a free statistics package that bridges the gap between Excel and actual coding (R, Python). In the corporate world we used Minitab or a similar package with an expensive enterprise license.
Once I moved to a smaller one and was doing analytics on the side, I didn't have the budget for such things so.... I made my own version...
Never really had the time to build out a full set of features or promote it. We probably could have grabbed a piece of low-rent district for analytics software.