Tom Baumgarten

SPS is a simple plugin to create a slider of pictures and display it with a shortcode or PHP code. Few options to keep it simple, but fast and efficient. Some hooks to improve the slider or to configure it more specifically. Good plugin for developers, with possibility to control what your client can edit or not in the advanced options. 
Compatible with ACF, you can put field groups for every slide. It’s possible to override template files for displaying the fields.

Simple Pictures Slider

A simple plugin to display a picture slider. Light, efficient and compatible with ACF. Best for developers.

Fonk Cape Town

lbr13t

This plugin adds an easily customisable function to your theme, with which you can fire Slack Notifications to any workspace and channel of choice. Currently, no pre-defined triggers exist, so it is up to you (or your developer) to add the function in to whichever part of your theme/processes you would like.

Fonk – Slack Notifications for Devs

Send Slack notifications from anywhere in your theme to a Slack workspace and channel of your choice.

Simple Pictures Slider vs Fonk – Slack Notifications for Devs