Discover gists

Elapsed and execution time display for commands in ZSH

Append this to your ~/.zshrc file.

function preexec() {
 timer=$(($(date +%s%0N)/1000000))

A Proof of Liabilities Scheme for Ecash Mints

Abstract: In this document, I will outline a proof-of-liabilities (PoL) scheme for ecash systems and Cashu specifically, which is a Chaumian ecash system for Bitcoin. The PoL scheme consists of three parts. First, a publicly auditable list of all issued ecash tokens in the form of mint proofs, and second, a publicly auditable list of all redeemed ecash tokens in the form of burn proofs, which are both regularly published by the mint operator. Third, a mint publicly commits to rotate its keys regularly once each epoch and allows all ecash in circulation to recycle from old epochs to the newest one. If clients remain vigilant and mints agree on a certain set of rules of operation which are publicly verifiable, users of a mint can detect whether a cheating mint has printed unbacked ecash during a past epoch, and, in many cases, provide public proofs of the mint engaging in this adversary behavior. Users achieve this by regularly checking t

Docker on Android 🐋📱

Edit 🎉

All packages, except for Tini have been added to termux-root. To install them, simply pkg install root-repo && pkg install docker. This will install the whole docker suite, left only Tini to be compiled manually.

Summary

How to get Telegram Bot Chat ID

Create a Telegram Bot and get a Bot Token

Open Telegram application then search for @BotFather
Click Start
Click Menu -> /newbot or type /newbot and hit Send

Follow the instruction until we get message like so

Done! Congratulations on your new bot. You will find it at t.me/new_bot.

To limit a CPU to a certain C-state, you can pass the processor.max_cstate=X option in the kernel line of /boot/grub/grub.conf.

Here we limit the system to only C-State 1:

    kernel /vmlinuz-2.6.18-371.1.2.el5 ... processor.max_cstate=1

On some systems, the kernel can override the BIOS setting, and the parameter intel_idle.max_cstate=0 may be required to ensure sleep states are not entered:

A curated list of command-line utilities written in Rust

Note: I have moved this list to a proper repository. I'll leave this gist up, but it won't be updated. To submit an idea, open a PR on the repo.

Note that I have not tried all of these personally, and cannot and do not vouch for all of the tools listed here. In most cases, the descriptions here are copied directly from their code repos. Some may have been abandoned. Investigate before installing/using.

The ones I use regularly include: bat, dust, fd, fend, hyperfine, miniserve, ripgrep, just, cargo-audit and cargo-wipe.

atuin: "Magical shell history"
bandwhich: Terminal bandwidth utilization tool

Install PHP 7 Xdebug in Arch Linux

"Normally", these instructions should be also valid (in similar way) for other Linux distros.

1.- Install Xdebug using pacman:

sudo pacman -Sy xdebug

	<?xml version="1.0" encoding="utf-8" ?>
	<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

	<targets>
	<target name="coloredConsole" xsi:type="ColoredConsole" useDefaultRowHighlightingRules="false"
	layout="${longdate}\|${pad:padding=5:inner=${level:uppercase=true}}\|${message}" >
	<highlight-row condition="level == LogLevel.Debug" foregroundColor="DarkGray" />
	<highlight-row condition="level == LogLevel.Info" foregroundColor="Gray" />
	<highlight-row condition="level == LogLevel.Warn" foregroundColor="Yellow" />

	/*
	Java Datalog Engine with Stratified Negation

	Copyright 2016 Werner Stoop

	Licensed under the Apache License, Version 2.0 (the "License");
	you may not use this file except in compliance with the License.
	You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0

	public class BoyerMoore
	{
	private int[] _jumpTable;
	private byte[] _pattern;
	private int _patternLength;
	public BoyerMoore()
	{
	}
	public BoyerMoore(byte[] pattern)
	{