This project shows 'progress bar' of your life. You can input 'start date' - your birthday - and supposed life length. Script will calculate amount of weeks of the period and display it with a progress sutted to current time point.
You can find a working example here.
If you want to customize something you can clone code and run dev server by this commands:
npm i
npm start
To build production code run
npm run build
Also there is setted up github actions. Check it out in .github/workflows/gh-pages.yml
Feel free to open issues and pull requests.