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Kimai is the #1 open-source time-tracking application. From freelancers to companies and organisations - everyone can manage timesheets, generate reports, create invoices and so much more... Web-based multi-user application, available as On-Premise or SaaS version: https://www.kimai.org
A program for financial portfolio management, analysis and optimisation.
Scalable, event-driven, deep-learning-friendly backtesting library
The JavaScript library for ExtensionPay.com — payments for your browser extensions, no server needed.
Lightweight Bitcoin payment processor written in easily deployable Python. Self custody donations and payments on-chain & Lightning network, directly connected to your own Bitcoin node! No middleman/custodian.
Frames iOS: making native card payments simple