This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.
The script is here:
#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"
| var DIR = '/tmp/test', | |
| FILE_PATTERN = /test/, | |
| fs = require('q-io/fs'); | |
| fs.list(DIR) | |
| .then(function (files) { | |
| var matched = files.filter(function (item) { | |
| return item.match(FILE_PATTERN); | |
| }); | |
| if (matched.length !== 1) { |
#How I built an audio book reader for my nearly blind grandfather
Last year, when visiting my family back home in Holland, I also stopped by my grand-parents. My grand-father, now 93 years old, had always been a very active man. However, during the presceding couple of months, he'd gone almost completely blind and now spent his days sitting in a chair. Trying to think of something for him to do, I suggested he try out audio books. After finally convincing him -- he said audio books were for sad old people -- that listening to a well performed recording is actually a wonderful experience, I realized the problem of this idea.
####The problem with audio devices and the newly blind. After my first impulse to jump up and go buy him an
| # Download latest archlinux bootstrap package, see https://www.archlinux.org/download/ | |
| wget 'ftp://ftp.nluug.nl/pub/os/Linux/distr/archlinux/iso/latest/archlinux-bootstrap-*-x86_64.tar.gz' | |
| # Make sure you'll have enough entropy for pacman-key later. | |
| apt-get install haveged | |
| # Install the arch bootstrap image in a tmpfs. | |
| mount -t tmpfs none /mnt | |
| cd /mnt | |
| tar xvf ~/archlinux-bootstrap-*-x86_64.tar.gz --strip-components=1 |
Since Twitter doesn't have an edit button, it's a suitable host for JavaScript modules.
Source tweet: https://twitter.com/rauchg/status/712799807073419264
const leftPad = await requireFromTwitter('712799807073419264');
| .col-xs-offset-right-12 { | |
| margin-right: 100%; | |
| } | |
| .col-xs-offset-right-11 { | |
| margin-right: 91.66666667%; | |
| } | |
| .col-xs-offset-right-10 { | |
| margin-right: 83.33333333%; | |
| } | |
| .col-xs-offset-right-9 { |
| """ | |
| Pull movie metadata from the https://www.themoviedb.org API. | |
| Requires an API key stored in a .config file | |
| The code is currently restricted to the movie category. To get it to run with | |
| other categories, update the constants | |
| (CATEGORY_SPECIFIC_CALLS, JSON_COLUMNS, KEYS_TO_DROP) | |
| and delete the movie specific section of the export_data() function. |
| default['sshd']['sshd_config']['AuthenticationMethods'] = 'publickey,keyboard-interactive:pam' | |
| default['sshd']['sshd_config']['ChallengeResponseAuthentication'] = 'yes' | |
| default['sshd']['sshd_config']['PasswordAuthentication'] = 'no' |
| /* | |
| * Quill 1.* cannot next block elements inside <li> including nested <ul>,<ol>. | |
| * To achieve nested lists it uses flat linear lists with CSS class `ql-indent-\d+` on <li>. | |
| * Nesting <ul> inside <ol> or vice-versa cause topmost list to break in two adjacent lists. | |
| * | |
| * There is the only solution: fix bad HTML after getting it from Quill and break it back before | |
| * passing to Quill again for editing. | |
| */ | |
| const mkNode = (tagName = 'div') => document.createElement(tagName); |
⚠️ Note 2023-01-21
Some things have changed since I originally wrote this in 2016. I have updated a few minor details, and the advice is still broadly the same, but there are some new Cloudflare features you can (and should) take advantage of. In particular, pay attention to Trevor Stevens' comment here from 22 January 2022, and Matt Stenson's useful caching advice. In addition, Backblaze, with whom Cloudflare are a Bandwidth Alliance partner, have published their own guide detailing how to use Cloudflare's Web Workers to cache content from B2 private buckets. That is worth reading,