calhub.nl

@calhub_nl
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Calendar hub: tracking and presenting information about #events from independent #communities in the #Netherlands . . . and sometimes posting here a bit of music ;-)

#hsnl , #hackerspaces , #cyber , #opensource , #openscience , #edu , #dev , #tech , #retrocomputing , #demoscene , #makers , #innovation , #creative , #fediverse

(ex hackhub_nl)

Future Website Addresshttps://calhub.nl
GitHubhttps://github.com/calhub-nl

Join us on our open day "Advanced Cybersecurity workshop" on 28th March (from 10:00-17:00).

Worried about cybersecurity?
Concerned about mysterious 5G waves?
Then come follow our advanced course in personal signal protection! ๐Ÿ˜‰

During this playful workshop at TkkrLab, you can build and decorate your own tin foil hat. But this is more than just foil,itโ€™s a chance to get creative and explore what our makerspace has to offer.

Youโ€™ll be able to customize your hat using different materials and tools, including:
- LEDs, resistors, and other electronic components
- 3D printed decorations
- Laser-cut parts
- Fabric and other craft materials

Whether you want a high-tech conspiracy helmet, a fashion statement, or just a ridiculously shiny hat, this workshop is all about creativity and making something together.

๐Ÿ’ป Itโ€™s helpful if you bring your own laptop, especially if you want to design parts for the laser cutter or 3D printer.

๐Ÿ“ Location: TkkrLab
๐Ÿ“… Date: March 28
๐ŸŽ‰ Occasion: TkkrLab Open Day

Come by, meet other makers, and leave with your very own custom tin foil hat.

#hackerspace #workshop #cybersecurity #caturday #tinfoilhat

[Opensourcewerken] " Lomiri Hackathon: Building the Future of Open-Source Mobile Apps in Tilburgโ€™s Historic Heart Tilburg, 16โ€“17 May 2026m, OS-SCi is set to transform its 135-year-old headquarters atโ€ฆ Lomiri Tech Meeting https://opensourcewerken.nl/events/view/4eafcd26-4ce8-4f3c-b920-309af4e1f624/lomiri-tech-meeting"
Lomiri Tech Meeting

Lomiri Hackathon: Building the Future of Open-Source Mobile Apps in Tilburgโ€™s Historic Heart Tilburg, 16โ€“17 May 2026m, OS-SCi is set to transform its 135-year-old headquarters atโ€ฆ

Opensourcewerken

Did you miss the Information Session and Q&A for the 2026 Open eScience Call? Not to worry, we have it on tape for you. Even if you did attend the session, the recording may come in handy as a reminder.
๐Ÿ–ฅ๏ธ https://www.youtube.com/watch?v=7z3T1BVknak&t=1s

Remember: the closing date for the submission of Project Propositions isโ€ฏ๐Ÿฏ๐Ÿฌ ๐— ๐—ฎ๐—ฟ๐—ฐ๐—ต ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฒ, ๐Ÿญ๐Ÿฐ:๐Ÿฌ๐Ÿฌ ๐—–๐—˜๐—ง.

Need support with creating the killer talk?
Get help to be a speaker in Cyber Security!
We are organising two CFPizza meetups to help you craft your submission to Wiccon and/or other conferences!
-> March 31 Online 18:30 CEST
-> May 30 The Hague 13:37 CEST
more info: https://www.meetup.com/wiccanl/events/

๐Ÿ“ฃ Registration for the Introduction to Geospatial Raster and Vector Data with Phython workshop is now open!
๐Ÿ‘‰๏ธ 21 & 22 April in Amsterdam
๐Ÿ‘‰๏ธ Lunch & drinks included
๐Ÿ‘‰๏ธ Get introduced to a set of tools from the Python ecosystem and learn how these can be used to carry out practical geospatial data analysis tasks

Register here:
https://www.esciencecenter.nl/event/introduction-to-geospatial-raster-and-vector-data-with-python-5/

Thanks to everyone who attended the #NOAW unconference, & @manfredzielinski & @douwe from the @gemeenteamsterdam for all their support!

It was a pleasure to be a harbour for a great variety of space ships in the #fediverse

Main takeaway:
We ALL want to see more public institutions on the #Fediverse & there are people working on it.

More to be followed.. Stay tuned!

#jugglingthefediverse #fedivariety #noaw #unconference #opensocialweb #socials #activitypub #activism #amsterdam

Een machtigmooi tweede leven voor jouw oude laptop  - De Orkaan

Een laptop die stof ligt te vangen in een la, kan voor een ander het verschil maken tussen wel of niet mee kunnen doen op school. Met dat idee is het landelijke initiatief Laptop Revive nu ook actief in de Zaanstreek. In Zaandam zijn vrijwilligers Bas Sommeijer en Eelco Aartsen (ook echte Orkaners!) aan de [โ€ฆ]

De Orkaan
Need support with creating the killer talk?
Get help to be a speaker in Cyber Security!
We are organising two CFPizza meetups to help you craft your submission to Wiccon and/or other conferences!
-> March 31 Online 18:30 CEST
-> May 30 The Hague 13:37 CEST
more info: https://www.meetup.com/wiccanl/events/

Volgende week zaterdag zijn veel hackerspaces nog opener dan normaal met de landelijke open dag! Bezoek ook zoโ€™n clubhuis vol hackers, knutselaars en makers, al is het maar om te ontdekken dat hackers best leuk zijn!

Check https://hackerspaces.nl voor een open dag in jouw buurt. Ik promoot โ€œmijnโ€ space nog even extra: Revspace: https://revspace.nl mocht je in de regio rondom Den Haag zitten. Goed bereikbaar met auto, OV en fiets!

Nederlandse hackerspaces en -organisaties

Hey, ieder jaar organiseren de vele hackerspaces van Nederland een open dag, en dus ook wij! Dit jaar is dat op zaterdag 28 maart.

Ben jij of ken jij iemand die interesse heeft in techniek, ict, solderen, breien, 3D-printen, lasercutten, chemie, fotografie, lassen, en nog zรณ veel meer - dan is het het zeker waard eens langs te komen!

En mocht je nou denken dat hackerspaces enge plekken zijn? zeker niet! We zijn vooral sociale nerds die een beetje dezelfde mindset hebben, en samen graag met hun hobby's bezig zijn.

Je kunt alle hackerspaces die meedoen vinden, รฉn informatie over wat een hackerspace nou is, op: https://hackerspaces.nl/open-dag/

๐Ÿ“Œ RevSpace: Hackerspace Den Haag
๐Ÿ—บ๏ธ Overgoo 1, Leidschendam
โฑ๏ธ 28 maart 2026, 11:00-18:00

Gratis ticket: https://pretix.eu/revspace/opendag2026/
(We werken met timeslots om de drukte te spreiden.)