Meetups/Infra/2025-06-23

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Security, open/verifiable/inspectable hardware, desire for group projects, and a Seattle community (but not mesh) network project, were the topics discussed at tonight's infra meetup.


Introductions[edit]

  • [name] - [background]. [goals for meetup, or interests to explore]
  • Loren - background as a platform eingeer, want to work on live online collaboration tools for the meetup. Sharing links, adding to notes.
  • Jams - software dev, web stack and agi, looking for work!
  • Charlie Cable -- just back from a lil conference in PNW
  • Josh -- just hanging out
  • Mike -- software engineer, working on setting up k8s cluster at home -- reading about atherosclerotic CVD -- let's make something -- micro-hack-a-thon? (some --
  • Coffee aka Ivan -- was at CCSF, now at UC Berkeley. Started a CS club at CCSF. Think my fundamentals are messed up, working on it now.
  • Citrine -- here to join Ivan here
  • Cloud -- current runner of 5mof.net at NB. Also have a facination with cardiovascular tissue, talked with some people about this.
  • Greg -- programmer, run home labs. No new projects now. Have a too nacent project.
  • Miko -- recovering mathematician, work on privacy projects. Work on hw, don't get to enough. Love / hate relationship with dev/ops.
  • Zacchae -- I love microsoft windows, only use .net, ?! .7 stallamns. 4g modem.
  • Jet -- i like robots, drones, and noisebridge. Today, I fixed a 4mm motor stater. I was very happy. I do the Noisebridge status bot
  • Yoshi -- first time here. Currently volunteering in Seattle, for a community-operated network. Primarily serving people coming out of homelessness. Thinking of virtualizing with proxmox.


Lesson or Demo[edit]

  • Read aloud: clarify for meetup. We are taking notes in a riseup pad (or I am--help appreciated, and links). We have meeting notes posted to the wiki. noisebridge.net, search Infra, or Meetups/Infra. (the Infrastructure page has a disambiguation link.)
  • Shell, web services, self-hosting, networking!

potential topics today -- microcode, more reversing, CHERI AMD microcode key leak.

offensive con

Teardown 2025 Update[edit]

https://godbolt.org/    #meetup  
https://github.com/compiler-explorer/compiler-explorer
https://github.com/EFForg/rayhunter #meetup  
https://reticulum.network/    #meetup  
Right to repair breakout OTR
https://meshtastic.net

bunnie huang talk - on inspectable silicon -- expect a surge in 28nm manufacturing. went deep on why transistor density is not getting cheaper working for the last Rewarding conference -- learn about the own-ability of the stack

Spoke with intel security folks. They're going through a massive layoff, 20% cuts across the board. Met engineer responsibilty for remediating & validating micro-code fix vulns. Fun Hack: microcode update to run RISC ~instruction set, directly on x86

DMCA -- Digital Millennium Copyright Act -- DRM Digital Rights Management, for movies, music, classically, other areas.

Weird case -- court disallowing exception to DMCA -- _because_ company sold the phone at a loss.

Pixel phone -- updates. Supports using GrapheneOS. Yes? uses secure boot, but warns that you're not using a Google-signed kernel.


https://betrusted.io/ -- Bunnie Huang project
https://www.bunniestudios.com/blog/2020/introducing-precursor/
https://www.crowdsupply.com/sutajio-kosagi/precursor

Evidence-based trust. Refutable. e.g. airplane mode yellow light indicator may not be enough, for someone's threat model. Did a project -- detecting (and live reporting) RF emenations from the phone. Live plots on sensors.

Hardware work with Snowden, Matthew Green, and EFF -- lauched a lawsuit -- about excessive use/misuse of DMCA to prevent security research.

(Open Suace -- july 18th - 20th, next month) -- can volunteer.


Zacchae -- this is the infra group -- let's do infra projects. SMTP email relay -- as NB project. Could allow users to run their own email server on their laptop, and just receive email when they come online. (One-time relay, not hosted mailboxes / imap).

Similar to what Dyn used to offer. 
https://delta.chat/en/ -- see also

What about matrix?


intros pt 2

Yoshi --- Seattle community network. Founder in PhD. Are focused on research, more broadly, how do you bring people into tech, without them sucumbing to the dangers of mis-engagement.

NYC Mesh operates differently. A mesh network. We have a community operated network, with a


Other valuable questions for the project Meshtastic --

Are people getting EMS onto this? Yes. (from conference)


Outro[edit]

PeeringDB -- learned about the resource.  and more about crypto - privately
apprecaite the knowledge sharing
Learned about IXPs. Ask me more about what you can find there.
About 28nm future relevance


infra hack day. -- 4th Sat Decentralized Web meetup, 4pm - 7pm
Loren -- running the infra chat service next service
email relay -- at NB, for roaming. SMTP redundancy node. for at least NB members -- being able to access it over tor.  https://delta.chat

Links[edit]

https://search.brave.com/search?q=cheri+architecture&source=web&summary=1&conversation=8a01611acbdd437b197abf
https://www.cl.cam.ac.uk/research/security/ctsrd/cheri/
https://betrusted.io/
https://search.brave.com/search?q=precursor+bunnie&source=web&summary=1&conversation=69654eeee83dad981cb68c
https://www.bunniestudios.com/blog/2020/introducing-precursor/
https://www.crowdsupply.com/sutajio-kosagi/precursor
https://search.brave.com/search?q=intel+atom+cpu&source=desktop&summary=1&conversation=b0eab5dda21ea442485f8f
https://search.brave.com/search?q=sgx&source=desktop
https://www.phoronix.com/news/Training-Solo-Vulnerability
https://old.reddit.com/r/linux/comments/1kljvrj/intel_releases_updated_cpu_microcode_due_to/
https://sfmix.org/
https://www.peeringdb.com/ix/155
https://en.wikipedia.org/wiki/Internet_exchange_point#/media/File:AMS-IX_optical_patch_panel.jpg


https://godbolt.org/ | Compiler Explorer
https://github.com/compiler-explorer/compiler-explorer | GitHub - compiler-explorer/compiler-explorer: Run compilers interactively from your web browser and interact with the assembly
https://github.com/EFForg/rayhunter | GitHub - EFForg/rayhunter: Rust tool to detect cell site simulators on an orbic mobile hotspot
https://efforg.github.io/rayhunter/configuration.html | Configuration - Rayhunter - An IMSI Catcher Catcher
https://reticulum.network/ | Reticulum Network
https://search.brave.com/search?q=innernet&source=desktop | innernet - Brave Search
https://github.com/tonarino/innernet | GitHub - tonarino/innernet: A private network system that uses WireGuard under the hood.
https://blog.tonari.no/introducing-innernet | Introducing 'innernet' | tonari blog
https://developer.hashicorp.com/vault | Vault | HashiCorp Developer
https://github.com/tonarino/innernet | GitHub - tonarino/innernet: A private network system that uses WireGuard under the hood.
https://webmail.innernet.net/Login.aspx | Innernet, Inc. Webmail /em2/
https://search.brave.com/search?q=meshtastic&source=desktop | meshtastic - Brave Search
https://meshtastic.org/ | Meshtastic
https://search.brave.com/search?q=bunnie+huang&source=desktop | bunnie huang - Brave Search
https://www.bunniestudios.com/ | bunnie's blog
https://www.youtube.com/watch?v=8aLW4UEuJ_c | Hackaday Europe 2025: Bunnie Huang - Seeing Through Silicon with IRIS Imaging - YouTube


Questions, Discussion, or Coworking[edit]

  • [Issue]

For next time[edit]

Questions[edit]

Readings & Exercises[edit]

  • Readings
  • Exercises

Join online[edit]

  • Try it yourself!
    • Join libera.chat #nb-meetup-infra

https://www.noisebridge.net/wiki/Meetups/Infra