witmin

Convert MP4 file to animated WEBP file in ffmpeg CLI

1. Install ffmpeg CLI through homebrew

In terminal.app, install ffmpeg through homebrew

brew install ffmpeg

Validate the installation:

dbist

CockroachDB and Docker Compose

This is the first in a series of tutorials on CockroachDB and Docker Compose

• Information on CockroachDB can be found here.
• Information on Docker Compose can be found here

1. Install Docker Desktop

Because we already have an official CockroachDB docker image, we will use that in our docker-compose.yml file. We recommend you use one of the current tags instead of latest.

dotspencer

Gitlab won't allow reuse of a public ssh key for multiple accounts. To get around this you need to create a second ssh key for the second account.

Create or modify your ~/.ssh/config file:

# normal                                                                                                                                                                  
Host gitlab.com-work_username
     HostName gitlab.com
     PreferredAuthentications publickey
 IdentityFile ~/.ssh/id_rsa

tstellanova

Install pigpio

If you're working with the rpi3's gpio, the pigpio library can be very handy.

sudo apt-get update
sudo apt-get install pigpio 

If you also want to access pigpio from python, install: sudo apt-get install python-pigpio python3-pigpio

Setup pigpiod service to run at boot

icoxfog417

 // send to current request socket client
 socket.emit('message', "this is a test");

 // sending to all clients, include sender
 io.sockets.emit('message', "this is a test");

 // sending to all clients except sender
 socket.broadcast.emit('message', "this is a test");

 // sending to all clients in 'game' room(channel) except sender