Meetups/Infra/2025-06-30

(Preamble:

   = Meetup - Infra =
   https://www.noisebridge.net/wiki/Meetups/Infra
   https://www.noisebridge.net/wiki/Meetups/Infra/2024-..-.. )

2025-..-.. m Meetups/Infra

(TODO summary)

Introductions

• [name] - [background]. [goals for meetup, or interests to explore]\

• Loren -- bg cloud/plat
• D -- interested in RE (rev eng), pointer authentication, want to explore
• Milan -- bg: devops engineer, short visit last time -- focus on security & ai
• Prajeena -- worked as ... for 5 years, want to DevSecOps, Ai infra side.
• Jay -- engineer consulting now, here to learn as much as possible -- lots of new developments, came here to dive in
• Eric -- mostly into hardware, also do site reliability and big infrastructure project
• Alex -- work on ml science side of things, working on LED display for bus stop time of arrival, config management
• Jake -- do backend for work, game dev on the side, like the discussions that happen here -- play with genAI stuff, but don't get useful stuff out of it, curious how people do**
• Matt -- did sysadmin stuff with Loren back at Uc Berkeley. Lately into compilers, lots of broad interests. Here for the vibes
• Wheezy -- interest in red team hacking, macOS dev, ios dev, swift, web dev now. Music & EDM
• Zacchae -- by trade, high level ai dev to compiler support for ML Ops incl custom hardware. Outside of trade, custom wearable compute setup (boo CUDA)
• Miko -- recovering mathematician here to learn
• Cloud -- run 5mof.net here at NB -- 3rd thursdays -- come show off! Like DALL-E, look me up on the wiki User:Cloud
• Hazel -- worked at an AI co once, and an enterprise company. AI confused me, was on people side. Huge game nerd, against DRM -- esp for old games. Parsec-like -- make cool memories together -- want an open source ai to teach people how to learn.
• Greg -- programmer, run a home lab, interested in computing broadly speaking
• Nicholas -- working recently with audio-reactive design software -- touchless input
• Yayoi -- unemployed SWE, here to learn
• Anna -- working on hardware product

Lesson or Demo

• 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!

8:10 -- breakout to work

• (Alex) -- bus sign LED project. 511 api, for data. Everything in the bay should be covered. Writing some rust to handle it.

Choices + config: want to combine rapid l 

https://github.com/cue-lang/cue https://dev.to/eminetto/introduction-to-cuelang-2631

https://github.com/APuzyk/transit-led-display/blob/main/src/main.rs - classic caveats on it being a bit early :p

• (Greg / re: Hazel) emulation --

https://docs.romm.app/latest/

Archive.org has a game-in-the-browser interface -- Sonic the Hedgehog.

Hazel does care about networked-play.

Sega Genesis had network play https://www.infochunk.com/schannel/index.html

• Jit.si -- self-hostable,

https://jitsi.org/e2ee-in-jitsi/ Is jitsi end to end encrypted? Yesish, not by default, not fully supported, etc. etc. https://signal.org/blog/how-to-build-encrypted-group-calls/

(Fully-homomorphic video transcoding)

• Nicholas -- TouchDesigner --

audio and video DSP, programmed with a graph-gui flow.

It's Freemium -- the commercial license is $700 -- not free (as in beer -- though quite meaningfully, partiall) nor free as in speech.

What are you using this for? VJ performance?

have a project with a dancer -- pose detection as input to filter and display pipelines

Music History: D'Cuckoo at the Oakland Colosseum: Early midi history in the Bay Area. Made a "Midi ball" https://www.youtube.com/watch?v=e6yzWW18RfU Silicon Graphics Generated the early CGI for their characters

AlgoRave events -- to 

SyzygySF (instagram)
AVClubSF

• (Loren) gpu -- https://siboehm.com/articles/22/CUDA-MMM

https://godbolt.org/#z:OYLghAFBqd5TKALEBjA9gEwKYFFMCWALugE4A0BIEAZgQDbYB2AhgLbYgDkAjF%2BTXRMiAZVQtGIHgBYBQogFUAztgAKAD24AGfgCsp5eiyahUAV0wtyKxqiIEh1ZpgDC6embZMQAVgBs5M4AMgRM2AByngBG2KQgAMwA7OQADuhKxA5Mbh5evgFpGfZCIWGRbDFxSdbYtsVMIkQspEQ5nt7SyTbYdlmNzUSlEdGxCV1NLW15ndYTg6HDFaNJAJTW6GakqJxcAKQATPGhqB44ANS78S4SwGTESGyXuLtaAIIHR0wnFtgXV6hKIiEdBPF7vQ7HU6/S4uAFA%2BgEKKgt4fSE/P6wsxRIxKAD6ADd9gA6JDI8Gfb7nGHmSy40hmYQEDgkslgj44OhhM4uXAASSCuIAIryAGoQACy5DO4RWZyg4tlBwAQnKZQBaHiygD0qpWbLeuNxwHo6CiEkNZ3x6AImDOSmA2DYbFxSiQzWwmFxHGd2PQqAA1hBQkQzpKzsHpVKIwBpKU0E0sEMSFJu8hgs4ZzNZ7M53N5zMYJiAs7x9CJs4AKleUsLxdL5YrSrTb3zrbb%2BfrIZiTTjCZDFZcisSSvTZ1rIYjSqCAHkXNGRLyAFrPeKC%2BL7S4jlsXbdanVEJC/DZEFJmLsmgNnA/lgDuvxvxhDJDH6DYp6Iv1CV6QBCU39I2AsJgvoBqO45nGYEaoAASugN5/IKZwgf6vKYOoRLqJuYFCMWkHCGOOQIUhF4oWhRIAJ5YSiu46hIF6Jr8URmDQNCxCWZBjpsAH4ch4ZMCWLDFq67q2t6o57naboAaJjrhn%2BwnSUh2BEHezBnHR/6AZgf5fiwxF%2Bv6o6GgpHoWp2ZyvEouw%2BEqU6zvOS64JWZx2XOC7LtZgpUa8GbGVJpm4iWfYuVZNmuQ5y7OeF7nPD4XnxFu7w0d%2Bn5MGEpBnKQcEXPsfgvvQ363tgYBcAB6moNsSgZCYfHfr%2BmlAdhRYhnhT5IABQGEZciEHh1mCoeh6g5T4Lkzm5jneRm4GtQ1mCwfB3WzQNGFnDq0UTQl%2Bo%2BattGYPixjbGcaTBrEf7PgevyAgMoTAEd6SZDho4%2Bcqi0wdlFajfZMXOdGm7tnmElZTe3VvTeNbuN1WijiqL2rgR7hRWNEUriq/2toDcGQ%2BD9Agzko4uDlI5w6DiNfY5znhIT8MFR960eQlO2ZZjq6g9juMQ9R23mUQb5EVoRJQ5t26CBlQY8aRQ2LYLKpRBLGJnL9DOywNhOLXTuBDolWYSQAEiw%2BK/IBqBILNZwJraQhHjQKVnLUjrMEQOn8c9uUuaOGYSeKLD%2Br8F2zYREDdb1WnLeosp%2B7WPRngQBt8TgmHbh7%2B7oOp9AmvBxqmhIZzemQ5HlZVf4YBI2BKKgN3uxZoVKsHQHzaT42Rcq/sQ3FRHvDZtdze9CtU13eNxZNmZKtXXf17TSPfc3/et4havWTX7VaeP0p90vnWz95lcSbxXdO3Vf68Qy9gFeIxufn%2BNBmGn%2BdpKeRgfpglfGeRXx7xAepC9tGYu0TiHq0PDMMN9h/0%2Bo3JyH1whb0TozbA6go4fhtpgdAJ4sqYDMHYM4QgbbmFINxIg9B85n0PLaZClcRZygjMgogKspZ/WobQq4YDkZ/ReiAhhaFNaVwzDzFIqs4aWQXmPHu6sqYcMwm3Cs3C8wjwXuIhuyM159QHvFLWmZdiJC8jAiSYQPRXhTkoV%2BqB1LABYLpNqhsmCYClM%2BfW1pbQ0EEh%2BDKe9t46lYkQY2N0bZhHUOeAyfFzqHjHCwc%2BSkRaXXTmxPe6kyrILCM/F0Rj36fzURorR20XBCPXt3eCkClFaRUQhaRyY3TOV4VTbsekPpZM7jklelNp45JUVvTRXA1j0G4D4fg3guA6HIOgbgLgFCCh8lkkBzclAbC2NCQ4fByBEG0 O0tYh4gKjA/uQf0vgtCGG4NIHpSyBncH4EoEAOzFl9PaeQOAsAUAYDfAwWIlBqD3JSI8uITB8QVR4DwZIOB8QEG2CKAg2AbzThSMwQ5dB6DONORAKIhyoihGaORbg8z7kcGENOJghDDk4DYMYY0Ox%2BmEAAr0A2pzLmBHgeYD8aL%2BAnU6VShEURSAorcDgQ5RBSBMnpWseMLBgBKGBaC8FkLeD8EEMIMQJcpCyClYoFQGhDn6H2IYQlaALBWBZacyAax0ApHqJSk5dteiOAgM4KY3geCBCsUMcolQDCFAetkdw7QnX3XqPakYcQbXdDNQ0OYVqDD%2BvqP0Fo3qli%2BtmAMYNfq5iRsdZqdYmxthSA6V0g5VLBlcGlCKFwBMflEkSALOU%2BBiAcQ%2BJqfgFydArBWVpdZawtk%2BB2Uy/Z5Ben9JzScs5Cyln1t2VwfY/A2AgGkPzPwPhEgAE5DhaH2IkeIWgfAzp8D4Tthye39suWsG5yAQD/MBdgZ5EBXnvPCOwHY4R82Fp4MWgW/APQVp5ZgAwCqZWSBkHIYQyg1CaCpaqmodQshOCscG6QAAOW1mBE2jB4D4G1zr6hxtSJ6rIcHfXSBncBnoYag1uumNB0NfQE0LAdfBxDMbJiEetdR%2BYZQfVypnWsbl2BsA2jORmrg3TN3Zu4IKbAALDoirvBlG9BazhFpLVoMthASAZSrVKNwDzGCKcOPsFYNaB0NrWXEDZWyeBaDbXs0dvgZ1EniNIfYWhEh%2BBnYkXKM6J2yC7fwbdpzzk6c2VIYzQ74hZu7ccndda1gG1IBkRw0ggA%3D

(we'll talk more. )

• • https://godbolt.org

Question: How to route packets on a router which blocks routing unless a CaptivePortal prompt is accepted? Answer: Micah Lee @ HOPE '18? -- for QubesOS has a nice, captive portal, setup -- limited reach out to the network for captive portal handling, demonstrated @34m:39s https://archive.org/details/QubesOSTheOperatingSystemThatCanProtectYouEvenIfYouGetHackedTalkByMicahLee https://www.qubes-os.org/news/2018/08/03/micah-lee-hope-conf-2018/ https://micahflee.com/the-operating-system-that-can-protect-you-even-if-you-get-hacked/

• Hazel -- Micah -- question -- about makeup & brand --

Xena warrior, awesome outfit, could make.

• (Loren / all) -- review some infrastructure protocol layers

network issues -- couldn't access work vpn. firewall.

• (ISoc visitor) Ron -- SF Bay ISoc

https://www.sfbayisoc.org/

Created originally by Vint Cerf ISoc now mainly tries to keep access everywhere.

Internet access in China town, NYC Mesh.

• (Eric) request: webui -- 2d images into 3d printables

1. 3d-printing channel in Discord

Currently: can ssh into ml2 to get access. Upload a png -> glb.

https://github.com/VAST-AI-Research/TripoSG

Flask app, upload

http://ml2.noise:5000/ within Noisebridge, on Noisebridge wifi

Prusa, ORCA Bamboo Kibi machine

== Outros --

Questions, Discussion, or Coworking

• [Issue]

For next time

Readings & Exercises

• Readings
• Exercises

Join online

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

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