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tim-tx / README.md
Last active March 26, 2026 18:26
step-ca root and intermediate certs with name constraints

This repo contains templates for generating root and intermediate CAs with step-ca and name constraints. Links:

  • [Motivation][1]
  • [step-ca name constraints documentation][2]
  • [A relevant blog post][3]

To generate:

  • step-cli certificate create "my-pki root-ca" root-ca.crt root-ca.key --template root.tpl --not-after 87600h
  • step-cli certificate create "my-pki intermediate-ca" intermediate-ca.crt intermediate-ca.key --template intermediate.tpl --ca root-ca.crt --ca-key root-ca.key, first you will enter the password to decrypt the root key, then enter a new password for the intermediate key
@tim-tx
tim-tx / iso.nix
Created September 26, 2024 16:13
Build a NixOS installer image including unfree broadcom-wl drivers
# source: https://blog.thomasheartman.com/posts/building-a-custom-nixos-installer
# set nix channel appropriately
# verify:
# nix-channel --list
# update:
# nix-channel --update nixpkgs
# build:
# nix-build '<nixpkgs/nixos>' -A config.system.build.isoImage -I nixos-config=iso.nix
@tim-tx
tim-tx / default.nix
Last active April 22, 2023 20:17
{ lib
, stdenv
, fetchFromGitHub
, flatbuffers
, libb2
, libuv
, lmdb
, openssl
, perl
, perlPackages
@tim-tx
tim-tx / full_latex_document.ipynb
Created July 28, 2022 01:16
Example of building an entire latex document in a jupyter notebook
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@tim-tx
tim-tx / qutebrowser_remap.py
Created August 14, 2021 00:45
Remap qutebrowser default keybindings to colemak
qwerty_to_colemak = {
'Q': 'Q',
'W': 'W',
'E': 'F',
'R': 'P',
'T': 'G',
'Y': 'J',
'U': 'L',
'I': 'U',
'O': 'Y',
@tim-tx
tim-tx / subs.py
Created August 4, 2021 20:11
Get YouTube subscriptions
# -*- coding: utf-8 -*-
# Sample Python code for youtube.subscriptions.list
# See instructions for running these code samples locally:
# https://developers.google.com/explorer-help/guides/code_samples#python
import os
import json
import google_auth_oauthlib.flow
@tim-tx
tim-tx / maloja.service
Created July 10, 2021 16:46
Maloja systemd.service file
[Unit]
Description=Maloja self-hosted music scrobble database
Documentation=https://github.com/krateng/maloja
After=network.target
[Service]
Type=forking
Environment=HOME=/dev/null
SuccessExitStatus=1
ExecStart=/usr/local/bin/maloja start
@tim-tx
tim-tx / keymap.c
Created May 9, 2021 19:03 — forked from BundleOfJoysticks/keymap.c
QMK Alt-Tab macro
#define ALT_TAB M(KC_ALT_TAB) // Macro for Alt-Tab
enum macro_keycodes {
KC_ALT_TAB
};
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
[0] = LAYOUT(
KC_MUTE, KC_ESC, KC_MPLY, \
MO(1), KC_UP, ALT_TAB, \
@tim-tx
tim-tx / .emacs
Created February 4, 2019 21:00
.emacs
;;;;;;;;;;;;;;;;
;; ELPA setup ;;
;;;;;;;;;;;;;;;;
(require 'package)
(add-to-list 'package-archives
'("melpa" . "https://melpa.org/packages/") t)
(when (< emacs-major-version 24)
;; For important compatibility libraries like cl-lib
(add-to-list 'package-archives '("gnu" . "https://elpa.gnu.org/packages/")))
(package-initialize)
@tim-tx
tim-tx / histogram_equalization.py
Created September 14, 2018 21:55
import skimage.exposure as skex
import cellprofiler
from cellprofiler.image import Image
adj = skex.adjust_sigmoid(cp_image_in.get_image(),cutoff=0.001,gain=30)
adj = skex.equalize_adapthist(adj)
cp_image_out = Image(adj,parent_image=cp_image_in)