frappe
Free and Open Source Enterprise Resource Planning (ERP)
EliteQuant
A list of online resources for quantitative modeling, trading, portfolio management
letianzj
Quantitative analysis, strategies and backtests
itflow-org
All in One PSA for MSPs, which Unifies client, contact, vendor, asset, license, domain, ssl certificate, password, documentation, file, network and location management with ticketing and billing capabilities, with a client portal on the side.