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@aksiksi
aksiksi / flake.nix
Created January 21, 2026 00:30
Nix Flake for Aya eBPF project
{
description = "Krait eBPF mesh VPN";
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
flake-utils.url = "github:numtide/flake-utils";
};
outputs = { self, nixpkgs, flake-utils, ... }:
flake-utils.lib.eachDefaultSystem (system:
@jwbee
jwbee / jq.md
Last active December 25, 2025 23:33
Make Ubuntu packages 90% faster by rebuilding them

Make Ubuntu packages 90% faster by rebuilding them

TL;DR

You can take the same source code package that Ubuntu uses to build jq, compile it again, and realize 90% better performance.

Setting

I use jq for processing GeoJSON files and other open data offered in JSON format. Today I am working with a 500MB GeoJSON file that contains the Alameda County Assessor's parcel map. I want to run a query that prints the city for every parcel worth more than a threshold amount. The program is

@velzie
velzie / manifest-v2-chrome.md
Last active December 25, 2025 23:58
How to keep using adblockers on chrome and chromium

NOTE

by the time you're reading this, this probably no longer works since the policy has been removed. I reccomend you to check out https://github.com/r58Playz/uBlock-mv3 instead

How to keep using adblockers on chrome and chromium

  1. google's manifest v3 has no analouge to the webRequestBlocking API, which is neccesary for (effective) adblockers to work
  2. starting in chrome version 127, the transition to mv3 will start cutting off the use of mv2 extensions alltogether
  3. this will inevitably piss of enterprises when their extensions don't work, so the ExtensionManifestV2Availability key was added and will presumably stay forever after enterprises complain enough

You can use this as a regular user, which will let you keep your mv2 extensions even after they're supposed to stop working

@thesamesam
thesamesam / xz-backdoor.md
Last active January 9, 2026 08:45
xz-utils backdoor situation (CVE-2024-3094)

FAQ on the xz-utils backdoor (CVE-2024-3094)

This is a living document. Everything in this document is made in good faith of being accurate, but like I just said; we don't yet know everything about what's going on.

Update: I've disabled comments as of 2025-01-26 to avoid everyone having notifications for something a year on if someone wants to suggest a correction. Folks are free to email to suggest corrections still, of course.

Background

@Mic92
Mic92 / scrape-prs.py
Created October 22, 2023 05:57
Scrape all nixpkgs pull requests
#!/usr/bin/env python3
import http.client
import json
import os
import time
import urllib.parse
import urllib.request
from pathlib import Path
from typing import Any
@manveru
manveru / base64.nix
Created September 6, 2023 03:19
Encode to base 64 in pure Nix
{lib, ...}: {
toBase64 = text: let
inherit (lib) sublist mod stringToCharacters concatMapStrings;
inherit (lib.strings) charToInt;
inherit (builtins) substring foldl' genList elemAt length concatStringsSep stringLength;
lookup = stringToCharacters "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
sliceN = size: list: n: sublist (n * size) size list;
pows = [(64 * 64 * 64) (64 * 64) 64 1];
intSextets = i: map (j: mod (i / j) 64) pows;
compose = f: g: x: f (g x);
@s1341
s1341 / freeipa-server.nix
Created May 29, 2023 04:08
working freeipa config
{
config,
lib,
...
}: let
cfg = config.services.freeipa-server;
in {
options.services.freeipa-server = {
enable = lib.mkEnableOption "freeipa service";
router = lib.mkOption {
@kurohouou
kurohouou / low-battery-and-unavailable-check.yaml
Last active December 27, 2025 19:09 — forked from sbyx/low-battery-level-detection-notification-for-all-battery-sensors.yaml
Home Assistant Blueprint: Low battery level detection & notification for all battery sensors
blueprint:
name: Low Battery and Device Unavailable Check
description: Regularly test all sensors with 'battery' device-class for crossing
a certain battery level threshold as well as if it is unavailable.
domain: automation
input:
threshold:
name: Battery warning level threshold
description: Battery sensors below threshold are assumed to be low-battery (as
well as binary battery sensors with value 'on').
@mfenniak
mfenniak / detect-reboot-needed.nix
Created January 6, 2023 15:39
NixOS module that provides hourly notifications when a reboot is needed for a kernel, initrd, or kernel-module upgrade
{ pkgs, ... }:
let
readlink = "${pkgs.coreutils}/bin/readlink";
notify-send = "${pkgs.libnotify}/bin/notify-send";
in {
systemd.user.services.detect-reboot-for-upgrade = {
script = ''
set -eu -o pipefail
@gnremy
gnremy / CVE-2021-44228_IPs.csv
Last active April 26, 2023 07:01
CVE-2021-44228 Apache Log4j RCE Attempts Dec 20th 9:27PM ET
ip tag_name
162.155.56.106 Apache Log4j RCE Attempt
223.111.180.119 Apache Log4j RCE Attempt
213.142.150.93 Apache Log4j RCE Attempt
211.154.194.21 Apache Log4j RCE Attempt
210.6.176.90 Apache Log4j RCE Attempt
199.244.51.112 Apache Log4j RCE Attempt
199.101.171.39 Apache Log4j RCE Attempt
197.246.175.186 Apache Log4j RCE Attempt
196.196.150.38 Apache Log4j RCE Attempt