I wrote about how to turn in-person meetings into Signal groups, how to manage large semi-public Signal groups while vetting new members, and how to use announcement-only Signal groups, perfect for rapidly responding to ICE raids https://micahflee.com/using-signal-groups-for-activism/

For example, while your Meshtastic device doesn't have an IMSI and does not communicate with cell towers, it does have a unique identifier that it broadcasts with every packet. If you associate that identifier with other data about you, such as geolocation or messages in public channels, or even by using the same device at home, you can be exposing yourself to similar risks as if you simply took your phone. Basically, burner phone rules apply.

https://meshtastic.org/docs/overview/mesh-algo/

#Meshtastic #OpSec

@decay @ronny @00Aaron Yes, #Meshtastic does technically offer encryption but it is missing some important features that are usually expected in good encryption protocols since the past decade or more, such as cryptographic authentication and integrity of messages, and perfect forward secrecy: https://meshtastic.org/docs/overview/encryption/#is-it-as-secure-as-wi-fi-wpa3-https-tls13-or-signal #Reticulum encrypted networking includes all of these features.

@GrapheneOS when you say "to continue supporting pixels" do you mean continue supporting newer pixel models beyond the 9a (which will probably require Android 16) or do you mean to continue supporting existing models (9a and older)?

@GrapheneOS Even if a port of Android 16 weren't possible at all, Graphene on existing pixels with Android 15 should continue to be supported until at least April 2032 (for the pixel 9a)?

Someone has developed a DIY drone detection and mapping system and released a $15 circuit board to build your own. Based on our experience with drone-based police surveillance, every autonomous space, social center, and mutual aid hub should have one of these cuties.

"The key difference between this system and commercial drone detection solutions is that it puts the power of airspace awareness directly in your hands, using affordable hardware and open-source software."

https://www.hackster.io/colonelpanic/mesh-mapper-drone-remote-id-mapping-and-mesh-alerts-8e7c61

Privacy At Risk: Government Buries Lawful Access Provisions in New Border Bill - my 2,600 word post on the history of lawful access and the new “information demand” power, global production orders, and new rules on law enforcement access to communications.
https://www.michaelgeist.ca/2025/06/privacy-at-risk-government-buries-lawful-access-provisions-in-new-border-bill/

@dlakelan it appears as though you can use an existing squid config as-is. I find it easiest to answer these kind of questions by searching Options on the NixOS Search page: https://search.nixos.org/options

I would absolutely love to see something like this:

• Based on Nix or similar.
• Fully declarative.
• Building and execution is fully sandboxed, ideally using micro-VMs.
• Accessible GUI for end-users to use.
• Signing of both build inputs and outputs.
• Multiple binary caches that cross-check each other to ensure that if one of them produces a wrong output, it is detected.
• Does not require root privileges to install software.

Good news! #3Dprinted #OpenSource microscope & lenses can facilitate clinical diagnostics in remote/poor places and ease access to microscopy to everyone.

The full paper is here: https://www.biorxiv.org/content/10.1101/2024.12.16.628684v1.full.pdf.
The microscope chasis was from #OpenFlexure project: https://openflexure.org
The link to the stl files to print the lenses is: https://pureportal.strath.ac.uk/files/250315808/PURE_data.zip

Now I have to look for a place to try this in Helsinki, maybe at #hacklabfi https://helsinki.hacklab.fi?

#microscopy #scienceforthepeople

"Indigenous Land defenders are not solely responsible for resisting the colonial death march of extractive industry—the frontlines are everywhere. Don’t wait for permission. Don’t ask for justice. Fight alongside those creating it. Land defenders need immediate material support and brave anti-colonial accomplices."

https://mtlcounterinfo.org/all-eyes-on-the-nehirowisiw-aski/

Wow thank you all for coming to our Mesh Day event as part of @constellation don't think Foulab has been that packed in awhile...

Here are some Reticulum resources that were mentioned during the workshop that we promised to post:

https://b2server.codeberg.page/blog/reticulum/

https://media.ccc.de/v/38c3-reticulum-unstoppable-networks-for-the-people

Following up on an epic @constellation anarchist bookfair weekend, this morning's fête populaire contre le fascisme with @montrealantifasciste was a resounding success, completely holding the space around the statue of Dollard des Ormeaux where the fascist group Nouvelle Alliance planned to gather for Journée des patriotes. The statue of the French colonist who waged war on the Haudenosaunee was draped in anticolonial symbols, a BBQ served up delicious free food, kids played and got their faces painted, and a dance party got going. The much smaller Nouvelle Alliance group stood meekly by the street corner protected by police.

Introducing oniux: Kernel-level Tor isolation for any Linux app :linux: :tor:

oniux is a tool written by me and some other folks for isolating arbitrary applications through Tor using Linux namespaces.

Check out the amazing blog post!

https://blog.torproject.org/introducing-oniux-tor-isolation-using-linux-namespaces/

:BoostOK: #Tor @torproject

@nausikaa @bob This reminds me of how much I like Graeber's playful take on the unfolding of the world: https://thebaffler.com/salvos/whats-the-point-if-we-cant-have-fun

NEW: GlobalX, the company doing many deportation flights for ICE, has been hacked. Hackers claim to have stolen flight manifest information and flight details, and have also defaced the website

https://www.404media.co/globalx-airline-for-trumps-deportations-hacked/

@autonomic https://njal.la/ seems like a decent option though not the cheapest.

Mastodon isn't perfect.

But the fact a social network exists that is completely free to use

has no venture capital investors

has no shareholders to answer to

has no growth targets

with a web interface with zero tracking cookies

and mobile apps with zero trackers at all

with ten thousand server administrators who donate their time for user safety

is - in my opinion - mindbogglingly cool, given the state of the world we live in. Not everything has to be shit. People make things better.

We are presenting a Mesh Day + Movie night at Foulab this May as part of Montreal's @constellation Anarchist Fest!

https://calendrier.constellationmtl.net/event/mtl-atc-presents-mesh-day-foulab

We invite anarchists to come and learn about various mesh networking technologies and how we can use them in our struggles.

In case this is useful to somebody:

Because of corporate collusion with law enforcement dating back to the 80s, all colour printers put tracking information on their printouts, whether you're printing a colour document or not, encoding information that ties printouts back to the specific printer used.

https://en.wikipedia.org/wiki/Printer_tracking_dots

In 2018, scholars at TU Dresden created a tool to re-anonymize color-printed documents by obscuring that data:

https://dl.acm.org/doi/10.1145/3206004.3206019

The tool: https://github.com/dfd-tud/deda