Kimai is a free & open source timetracker. It tracks work time and prints out a summary of your activities on demand. Yearly, monthly, daily, by customer, by project … It’s simplicity is its strength. Due to Kimai’s browser based interface it runs cross-platform, even on your mobile device.
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ActivityWatch is an automatic time-tracking software which helps you keep track of what you do. It's an attempt to replace and improve existing services like RescueTime, ManicTime, WakaTime and others. It is different in that it's completely open source, extendable, and you as a user have full and exclusive control of your data.
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This post show us how to use the new CSS selector :where() :is() :has() to make our life easier.