Florian marsmensch

Multi-Node Bitcoin Core on One Host (OverlayFS + Split Storage)

Run several independent Bitcoin Core nodes that share block files while keeping each node’s LevelDB on fast/local storage.

Overview

LevelDB data (mutable) → /mnt/chaindata/<node> (ext4, noatime)
Contains: chainstate/, blocks/index/, indexes/, debug.log, peers.dat, PID.

FLASH — Fast Locator of Assets for Scalp Hits

A small Python script that finds the best Binance USDT-M perpetuals for scalping and exports:

a TradingView watchlist (BINANCE:SYMBOL.P)
a CSV with metrics and score

No API key needed. Uses Binance public futures endpoints only.

LLM Prompt: Extract TradingView-Ready Tickers

You are a crypto market data assistant.
Your task is to extract a clean, import-ready list of tickers from a screenshot of a market scanner / screener.
The output must be directly pasteable into TradingView watchlists.

Rules

SFP Detector — Low-TF, Pivot-Confirmed (v1.7)

A non-repainting Swing Failure Pattern (SFP) indicator for TradingView (Pine Script v6).
Signals are confirmed at bar close using pivot-based logic with optional ATR, session, and HTF bias filters.
Includes alerts with fixed messages and optional side labels for clear chart annotation.

Bitcoin Knots vs Core — Exclusive Contributors by LOC (Bash)

This script compares Bitcoin Knots and Bitcoin Core by actual lines of code (LOC) changed (adds + deletes), then lists exclusive contributors on each side. It also prints context (top directories, files, and commits) for Knots-only contributors.

Exclusivity (strict-zero):

Knots-only: > THRESHOLD LOC in Knots and exactly 0 LOC in Core
Core-only : > THRESHOLD LOC in Core and exactly 0 LOC in Knots

Counting rules

I've been following GamingMonsters's gbdk Gameboy Dev tutorial (it's rad! https://www.youtube.com/playlist?list=PLeEj4c2zF7PaFv5MPYhNAkBGrkx4iPGJo).

Was doing this for my own reference, but thought I may as well flesh out & share I'm on MacOS, so have put together anywhere I've had to do something different, I'm up to Session 10, so will update if anything further comes along as we progress.

Quick heads up, before you run anything here make sure you know what it's doing, this all worked fine and dandy for me, but I'm not making any promises!

"Hello World" - Part 1

Installing gdbk

Password-store keeps your passwords (or any other sensitive information) saved in GnuPG encrypted files organized in ~/.password-store. For more information about GPG, consult the GNU Privacy Handbook.

Getting started

To get started, install pass and generate a keypair.

$ brew install pass
$ gpg --gen-key
$ gpg --list-keys

	Summary of the PegNet 51% attack on 4/21/2020
	=============================================
	TL;DR: A miner or group of miners with more than 51% of hashpower submitted an
	artificially inflated price for JPY, turning ~1,265.79 pJPY (~11.79 USD) into
	~6.7mm pUSD, then tried to liquidate as much as they could on exchanges.

	Timeline:

	Block 241369
	The address FA2dZeSVXZMVzGMGMqG5vhgoQ7J6LUjguQjC5RKTf7nRcFk9KvEj