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Cake day: July 9th, 2023

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  • Nice! I’ve wanted a tool exactly like that many times. I’ll back it and see.

    The closest I could find before were essentially pin to pin continuity checkers, which are useful for telling if a cable is PD only, 2.0 vs 3.x, or has a line break, but most of those can be eyeballed, otherwise metered. So these just checkers just add precision and speed to something you already know how to do.

    The runner ups were the (now ubiquitous) inline inductive energy trackers, because they can tell you a bit more about the gauge of the wires in the cable which can be important, especially high amperage 5v like pi 4.B

    But to test quality of shielding for high rate data transfer, DP and PCI-E tunneling, etc., the only option was manually user testing with adequately powerful devices.



  • I wouldn’t necessarily say fantasy. Grover’s only requires 2n qubits to brute force, where n is # of bits mod N.

    So consider RSA 2048 / AES 128. Still common. You’re probably in range of wifi that uses it. That would only require ~4096 qbs to brute force. For reference, Osprey (2022) had 400+ qbs and Condor (2023) has 1k+ (with ECC it’s lower but can’t remember how much).

    Probably within a decade you can rent a machine with enough for these older protocols, and that’s not a very long time to hold onto data if it’s potentially high value. So “fantasy” might be a stretch.









    1. DNS resolver, like pi-hole, unbound with adguard, diversion, etc.
    2. RMS server: a lot of Remote Desktop software has the option to install a listener on a low power device elsewhere on the network that can use wake-on-lan to access computers within the network without keeping everything on 24-7.
    3. Log aggregator: would be useful for anyone who troubleshoots stuff regularly, but historical info of any kind can come in handy.
      Simplest form might be a scribe server. Network gear often has an option to send logs to a particular URL, so if you added the scribe server IP/port to the field you’d have historical network logs.
    4. Additional loggers: could also be run on-device, such as a wifi connectivity checker, smart home or energy monitoring state data, decibel meter with USB microphone
    5. RADIUS server for managing enterprise WPA keys
    6. Mobile home: due to the size and power draw, when paired with a hotspot and battery the potato could be useful as a mobile service repeater, a VPN client that deploys your home services on the go (e.g. in a vehicle, hotel room, family/friends’ houses, etc) to arbitrary client devices. If you use the same SSID/PW and encryption type, personal devices would use it automatically during travel.
    7. Home theater box like kodi or jellyfin client

    At the level of individual apps, the list explodes. Many progressive web apps can be hosted essentially for free on the potato, so you could shunt your always-on services to this machine to allow low power states on a beefier machine. For example:

    1. Network management or security software like Fing
    2. Low throughput NAS or incremental backup management server like rdiff, TimeMachine, etc
    3. inventory management like partkeeper, storaji, etc
    4. Smart home bridges like homeassistant or homebridge
    5. Bookmark aggregator or landing page like heimdall, raindrop, pinalist, etc
    6. Retro game emulators or ROM libraries like retropie
    7. Photo libraries like photoprism
    8. Book libraries like calibre-web

    Edit: list subitem formatting messed up
    Edit: add common micro services, mobile deployment
    Edit: add home theater suggestion
    Edit: add always-on and PWA examples