From IndieWeb

Local and Offline Jam was a session at IndieWebCamp SF 2019.

Notes archived from: https://etherpad.indieweb.org/locol

IndieWebCamp SF 2019
Session: Local and Offline Jam
When: 2019-12-07 15:20




  • Step 1: Start wifi hotspot
  • Step 2: Connect all devices to the hotspot
  • Step 3: Turn off mobile data on all mobile devices
  • Step 4: Turn on Bluetooth on all devices

You're now all connected to the same wifi network, but without access to the internet.

How to connect and collaborate?

Test: Load an address of some kind in a web browser, that results in renderable web content

HTTP over TCP on local network

  • Connectivity: LAN
  • Steps: Type IP address int a web browser
  • Results: Mixed - some network configurations can prevent this from working
  • Notes
    • Android phone hotspot worked fine for loading local network webservers.
    • But Mozilla's guest network does IP isolation, so it didn't work at all.
    • Challenge: lack of human readable names like DNS provides.
    • Challenge: no network discovery of available websites
    • Challenge: no HTTPS for local DNS-less websites


  • Connectivity: Bluetooth
  • Steps: Open Airdrop, and drop a file on a person listed there
  • Results: Failure - no way to do anything web
  • Notes
    • Mac OS X laptop computers were able to share files. That's not the web.
    • One laptop couldn't see the iOS device but the other one could.
    • Mac OS X prompted for Bluetooth, which seems odd - not clear what was used to transfer

Secure Scuttlebutt

  • Connectivity: LAN, Bluetooth
  • Steps: Open SSB client, and try to connect to the other person in the room
  • Results: Failure - no way to do anything web
  • Notes
    • We tried Patchwork on Mac OS X, Manyverse on Android, Planetary on iOS
    • We connected Patchwork and Manyverse, but not Planetary


  • Test Beaker Browser (Dat)
  • Test IPFS - embedded node in Brave, IPFS Desktop + IPFS Companion browser extension

See Also