About Markus Lerner
the creator of Travelscope and other open source software
I'm an interaction designer and software developer and the creator of Travelscope, a free interactive map, which lets you explore the travel freedom attached to passports.
If you buy me a coffee, you help me pay for the server costs, keep Travelscope ad-free and enable me to publish more open source software on my GitHub page.
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