Companies besides Apple and LG have finally started releasing affordable retina-scale displays. I'm collecting them here mostly for my own notes.
A proper retina-scale external display for a Mac must have a pixel density of at least 200ppi. That means a 5K monitor should be 27" diagonal. 4K 27" monitors are disqualified.
Someone on the MacRumors forum made a comprehensive, less-up-to-date table, which might be worth looking at to see if I missed anything.
| -- osascript toggle_function_keys.scpt | |
| -- Inspired by https://gist.github.com/alampros/2b81af6cfc564f6accd3 | |
| tell application "System Preferences" | |
| reveal anchor "keyboardTab" of pane "com.apple.preference.keyboard" | |
| end tell | |
| tell application "System Events" to tell process "System Preferences" | |
| set checkbox_target to false |
| ffmpeg -ss $INPUT_START_TIME -t $LENGTH -i $INPUT_FILENAME \ | |
| -vf "fps=$OUTPUT_FPS,scale=$OUTPUT_WIDTH:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" \ | |
| -loop $NUMBER_OF_LOOPS $OUTPUT_FILENAME | |
| # Change these placeholders: | |
| # * $INPUT_START_TIME - number of seconds in the input video to start from. | |
| # * $LENGTH - number of seconds to convert from the input video. | |
| # * $INPUT_FILENAME - path to the input video. | |
| # * $OUTPUT_FPS - ouput frames per second. Start with `10`. | |
| # * $OUTPUT_WIDTH - output width in pixels. Aspect ratio is maintained. |
Public-key infrastructure (PKI) is an umbrella term for everything that has to do with keys and certificates.
This is a quick overview of the important stuff.
Public-key cryptography involves a key pair: a public key and a private key. Each entity has their own. The public key can be shared around, the private key is secret.
A list of useful commands for the FFmpeg command line tool.
Download FFmpeg: https://www.ffmpeg.org/download.html
Full documentation: https://www.ffmpeg.org/ffmpeg.html
Native HTML controls are a challenge to style. You can style any element in the web platform that uses Shadow DOM with a pseudo element ::pseudo-element or the /deep/ path selector.
video::webkit-media-controls-timeline {
background-color: lime;
}
video /deep/ input[type=range] {
| /* ******************************************************************************************* | |
| * THE UPDATED VERSION IS AVAILABLE AT | |
| * https://github.com/LeCoupa/awesome-cheatsheets | |
| * ******************************************************************************************* */ | |
| // 0. Synopsis. | |
| // http://nodejs.org/api/synopsis.html |
| # to generate your dhparam.pem file, run in the terminal | |
| openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048 |
W3C Introduction to Web Components - explainer/overview of the technologies
Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.
$ python -m SimpleHTTPServer 8000