adrinoe

This plugin Permit to create , edit and delete a simple box . 
A box have just a title and content .
To view the box in your blog , you have two possibilities , the first is to add a widget and select your box and the second is to utilize the shortcode call box . 
for example [box id=1]
This plugin is a good base of create a news plugin .
Ce plugin permet de créer , gérer et supprimer une box 
Une box contient seulement un titre et son contenu
Pour visualiser la box 2 possibilit? , en utilisant le Widget ou le Shotrcode box . 
Par example [box id=1]
Ce plugin n’apprte rien de sp?cial mais c’est une bonne base pour cr?er un plugin plus conséquent .

WP Box Simple

This plugin Permit to create , edit and delete a simple box .

Mario Peshev

DevriX

This is a fully-functional sample skeleton plugin for plugin developers.
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/FfQpGD_MUbk?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
It serves as a startup code providing reference and working codebase for:
<ul>
<li>defining custom post types and taxonomies</li>
<li>creating admin pages</li>
<li>sample code of the Settings API implementation for admin pages</li>
<li>registration of activate/deactivate hooks</li>
<li>adding metaboxes on pages</li>
<li>creating sample shortcode</li>
<li>creating sample widget</li>
<li>creating AJAX requests storing sample data in the database</li>
<li>creating AJAX requests for fetching remote data with the HTTP API</li>
<li>adding frontend styles/scripts the right way</li>
<li>adding admin styles/scripts the right way</li>
<li>defining common constants for further use</li>
</ul>
and more. Use it freely as your plugin startup snippet.
Take the code as is for test and learning or use it when creating plugins for a solid base. To be extended with 
widget and shortcode samples.

DX Plugin Base

Startup plugin code for new plugin, including the archetype of standard features, admin and core functions to be used in new plugins.

WP Box Simple vs DX Plugin Base