How to make a map with several layers? uMap [https://umap.openstreetmap.de/en/] lets you create maps with OpenStreetMap layers in a minute and embed them in your site. Also on the program of this Proxy Cafe, managing your own Thunderbird calendar, importing calendar feeds [https://support.mozilla.org/en-US/kb/creating-new-calendars]. And if you're still using Proton mail, Google and Hotmail, it's not too late to move to something else. We'll be playing with all these tools. Proxy Cafe: free software workshops. Discussing tech and politics, GNU/Linux, fixing computers and revive old laptops, free and opensource software workshops. Zapatista coffee.