Challenges December 2020

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Projects with Challenges

This is the list of Lightning Network related projects that registered for this HackSprint (please contact @rootzoll on twitter to add your project):


Github issues with label "hackathon":

  • rootzoll: Testing the Lightning Vouchers (IP2Tor & LNbits)

Video explaining how to contribute to the RaspiBlitz development:

Chatroom to get started:


Python Bitcoin block information, transactions, send message to Space and more.

Github issues with label "hackathon" (Python)

Chatroom to get started:

Wiki Lightning Spam Protection

Turn this prototype to add a Lightning SpamProtection into a Media Wiki Extension thats easy to install & config on a standard Media Wiki.

Chatroom to get started:

Micropayment wallet for Moneysocket

Help flesh out the existing skeleton of a micropayment-oriented wallet that speaks the Moneysocket protocol to interconnect with other applications.

Please watch this quick video!

Web Dev skillsets needed! (CSS, in-browser JavaScript, build scripting, etc.).


Moneysocket Protocol:

Chatroom to get started:

Development of LNP Node

Challenges (two alternatives):

1. Develop LNP Node SDK with language & platform-specific bindings for C, JavaScript, Python, Swift and Java in (challenge dashboard is here

2. Finalize migration of HTLC functionality from LNP Node to LNP/BP Core library according to

How to prepare yourself for the challenges:

1. Watch the LNP Node architecture explanation & demo (part 1, part 2 ***YOUTUBE LINKS***)

2. Explore repo and

3. Explore sample SDK (build for RGB Node) as a source for building equivalent LNP Node SDK with native language bindings

Chat to get started:

Sphinx Chat App

Create & customize your tribe group chat.


Chat to get started:

rC3 402 Assembly Integration

Add a cool Lightning Hack to the rC3 2D AdventureMap.

  • Sell an achivement batch for 1 satoshi
  • Make a JITSI room where I can trigger something with 1 satoshi
  • simply present your project on the map with a small description



Chat to get started: