Challenges December 2020

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):

RaspiBlitz

Github issues with label "hackathon": github.com/rootzoll/raspiblitz

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

Video explaining how to contribute to the RaspiBlitz development: https://youtu.be/ZVtZepV3OfM

Chatroom to get started: https://mm.fulmo.org/fulmo/channels/raspiblitz

Outcome

Some people tested and RaspiBlitz 1.6.3 looks good .. will be released soon after New Years.

pyBlock

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

Github issues with label "hackathon":github.com/curly60e/pyblock (Python)

Chatroom to get started: https://mm.fulmo.org/fulmo/channels/pyblock

Wiki Lightning Spam Protection

Turn this prototype https://github.com/thorie7912/LightningPayment to add a Lightning SpamProtection into a Media Wiki Extension thats easy to install & config on a standard Media Wiki.

Chatroom to get started: https://mm.fulmo.org/fulmo/channels/media-wiki-spam-protection

Outcome

Working prototype by pseudozach :D See code and demo video here: https://github.com/pseudozach/LightningPayment

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! https://youtu.be/grThYTjgwAA

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

GitHub: https://github.com/moneysocket/costanza

Moneysocket Protocol: https://socket.money

Chatroom to get started: https://mm.fulmo.org/fulmo/channels/moneysocket

LNP Node

Challenges (two alternatives):

1. Develop LNP Node SDK with language & platform-specific bindings for C, JavaScript, Python, Swift and Java in https://github.com/LNP-BP/lnp-sdk (challenge dashboard is here )

2. Finalize migration of HTLC functionality from LNP Node to LNP/BP Core library according to https://github.com/LNP-BP/rust-lnpbp/pull/163

How to prepare yourself for the challenges:

1. Watch the LNP Node architecture explanation & demo YouTube videos.

2. Explore repo https://github.com/LNP-BP/lnp-node and https://github.com/LNP-BP/rust-lnpbp/tree/master/src/lnp/application

3. Explore sample SDK https://github.com/LNP-BP/rgb-sdk (build for RGB Node) as a source for building equivalent LNP Node SDK with native language bindings

Chat to get started: https://mm.fulmo.org/fulmo/channels/x-rust-ln-node

Outcome

Will be presented by the team on the wrapup livestream.

Sphinx Chat App

Create & customize your tribe group chat.

GitHub: https://github.com/stakwork

Chat to get started: https://mm.fulmo.org/fulmo/channels/sphinx-chat

Lightning Browser Extension

Having lightning available from in the browser offers amazing new possibilities for web apps: seamless payments and authentication just to name the obvious ones.

Currently there is Joule as a browser extension and WebLN as integration specification. Joule only works with LND and because browsers do not support self-signed certificates the integration currently has limitations.

The challenge:

Help prototype a browser extension that can connect to different desktop or mobile wallet applications.

The goal is to have minimal specification that allows the browser extension to connect any user preferred lightning wallet (zap, electrum, mobile wallet, etc.).

Chat to get started: https://mm.fulmo.org/fulmo/channels/ln-browser-extension

Outcome

Working prototype of a browser extension talking to a LND node through a native app LND native companion

User-enabled "allowances" work and allow payments without any user interaction (if enabled by the user) on any web site that integrates WebLN. This means web sites can requests payments and the user's browser wallet can decide to pay it without bothering the user.

Discussions on the WebLN standard should continue to optimize for a smooth lightning integrations.

LNbits

Github: https://github.com/lnbits/lnbits

Outcomes

1. Subdomain extension

The goal of this extension is to enable someone who owns a domain (example.com) to sell a subdomain (subdomain1.example.com) to anyone who is willing to pay the required amount of satoshis. The subdomain can be sold for any duration you want. Currently cloudflare is supported as domain registrar. So you need their free account and their API key for editing DNS zone information. You can see the progress here: https://github.com/lnbits/lnbits/pull/135 Developer: https://github.com/grmkris

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

Docs: https://howto.rc3.world/maps.en.html

GitHub: https://github.com/rootzoll/map-402assembly

Chat to get started: https://mm.fulmo.org/fulmo/channels/rc3

Outcome

See this wonderfull map by @LouisaAlexa https://twitter.com/emzy/status/1343911369960259584?s=20

also emzy did a nice virtual give away with lighning vouchers :)