Start Building

Everything You Need to Ship Sovereign Software

Start with the Bitcoin Layer 1 and Layer 2 foundations that anchor BBOXX, then extend into the wallets, protocols, scaling systems, and SDKs that power production sovereign apps.

Layer 1 Foundations

Consensus, transactions, mempool policy, and node-level APIs to ground every project in Bitcoin’s base layer.

Bitcoin Developer Guide

Canonical walkthrough of nodes, consensus, transaction relay, and wallet internals direct from Bitcoin.org.

View docs

Bitcoin Core RPC & REST

Reference for every Core RPC call, config flag, and REST endpoint with usage notes and examples.

View docs

BIPs Catalog

All Bitcoin Improvement Proposals (BIPs) covering consensus upgrades, wallet standards, and best practices.

View docs

Mastering Bitcoin

The open-source O’Reilly book that explains Bitcoin from keys to scripts to network propagation.

View docs

Layer 2 Playbooks

Move fast above the base layer with Lightning, smart contract rollups, and federated systems tuned for UX.

Lightning Protocol Spec (BOLTs)

Detailed requirements for channel negotiation, onion routing, invoices, and gossip propagation.

View docs

LND Developer Docs

gRPC/REST APIs, Macaroon auth, and sample workflows for building services on top of LND.

View docs

Core Lightning Guide

Plugin system, commando RPC, and scalable node deployments for CLN.

View docs

RGB & Taproot Assets

Client-side smart contract frameworks for issuing assets over Bitcoin and Lightning.

View docs

Toolkits & Sandboxes

Production-ready SDKs and reference stacks that plug directly into BBOXX submissions and milestone reviews.

Bitcoin Dev Kit (BDK)

Rust-based wallet toolkit with descriptors, Miniscript, and hardware signer integrations.

Open resource

Lightning Dev Kit (LDK)

Modular Lightning node stack for mobile and server apps, written in Rust.

Open resource

Stacks Documentation

Build smart contracts that settle on Bitcoin using Clarity and the Stacks L2.

Open resource

Fedimint Docs

Federated Chaumian mints for community custody, with Lightning gateways and module SDK.

Open resource

Share Your Favorite Stack

Missing a guide or SDK? Let us know so every builder hitting /build lands on the most current map of sovereign software infrastructure.

Submit a resource