sekcompsci

Comparison table for ESP8266/ESP32/ESP32-S2/ESP32-S3/ESP32-C3/ESP32-C6

A minimal table to compare the Espressif's MCU families.

	ESP8266	ESP32	ESP32-S2	ESP32-S3	ESP32-C3	ESP32-C6
Announcement Date	2014, August	2016, September	2019, September	2020, December

ityonemo

A half-hour to learn Zig

This is inspired by https://fasterthanli.me/blog/2020/a-half-hour-to-learn-rust/

Basics

the command zig run my_code.zig will compile and immediately run your Zig program. Each of these cells contains a zig program that you can try to run (some of them contain compile-time errors that you can comment out to play with)

erikig

slok

Enable profiling

Default http server

import (
    _ "net/http/pprof"
    "net/http"
)

lummie

// CustomTime provides an example of how to declare a new time Type with a custom formatter.
// Note that time.Time methods are not available, if needed you can add and cast like the String method does
// Otherwise, only use in the json struct at marshal/unmarshal time.
type CustomTime time.Time

const ctLayout = "2006-01-02 15:04:05 Z07:00"

// UnmarshalJSON Parses the json string in the custom format
func (ct *CustomTime) UnmarshalJSON(b []byte) (err error) {

MTuner

Apple removed colored sub-pixel antialiasing in MacOS Mojave
(https://developer.apple.com/videos/play/wwdc2018/209/ starting from ~28min)

To make fonts look normal in Sublime Text, add to Preferences:

// For the editor
"font_options": [ "gray_antialias" ],
// For the sidebar / other elements
"theme_font_options": [ "gray_antialias" ],

dan-dr

Make sure you installed Ace Stream media 3.1 from http://www.acestream.org/

1. Open "Ace Stream Media Center"
2. Go to http://127.0.0.1:6878/webui/app/XBsF06CtbkkB/server#proxy-server-add-item
3. Give it a title
4. In CONTENT-ID put the acestream content id
5. Click ADD-TO-PLAYLIST
6. If it doesn't move you to a new screen go to http://127.0.0.1:6878/webui/app/XBsF06CtbkkB/server#proxy-server-playlist
7. Now there's a list with a row with your title (should be the only one if it's your first time)
8. Click the arrow next to play in the list and choose VLC or the chromecast device (chromecast not working for me yet)

kentcb

// Copyright 2014 The Chromium Authors. All rights reserved.

// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:

//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
//       copyright notice, this list of conditions and the following

jamesridgway

# Gnome 3 - based on https://blog.samalik.com/make-your-gnome-title-bars-smaller/
.header-bar.default-decoration {
    padding-top: 3px;
    padding-bottom: 3px;
    font-size: 0.8em;
}
.header-bar.default-decoration .button.titlebutton {
    padding: 0px;
}

giannisp

After automatically updating Postgres to 10.0 via Homebrew, the pg_ctl start command didn't work.
The error was "The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0."

Database files have to be updated before starting the server, here are the steps that had to be followed:

# need to have both 9.6.x and latest 10.0 installed, and keep 10.0 as default
brew unlink postgresql
brew install postgresql@9.6
brew unlink postgresql@9.6
brew link postgresql