Having different images to optimize the experience on different devices (or screen resolutions) is essential. Here's a quick implementation example on how to achieve that using Rendering Variants (Scriban or Items).
A walk through from A to Z starting creating a module, clone a rendering, adjust the templat, create a custom experience button, creating the variants using items and scriban and installing the module to the site in order to test it.
A common task when implementing a website is to handle the height equality of components in one row even though the content might differ. SXA has an already inbuild solution.
Even though SXA is there since many years, adopting towards SXA seems to be a very slow process. When I heared of SXA in 2016 for the first time I directly fell in love with it. I managed to introduce it to a Multisite and Multilanguage Project end of 2017 and by working with it, I became an ambassador for SXA. Let's check out some material I recommend to see before getting started.
With Powershell Extensions for Sitecore you can run Powershell scripts in Sitecore. Also SXA is offering a bunch of Scripts supporting your activities. I recently had to run Powershell remotely. There is good Documentation out there but somehow I missed some pieces that stopped me from using that feature smoothly. So I try to connect the pieces of the puzzle in this blog post.
See the Symposium 2019 talk of Natasha Batra and me (rerecorded) how Metronom developed a Multisite Solution at scale and walk through how we utilized the greadt potential of SXA to accelerate.
When you have created Components and you figure out later that they are used always in a bunch of e.g. 3, or you want to prepare a one-time-drag-and-drop experience for the editor even though several components are involved (like in a header or a footer) then the component renderer (introduced with SXA 1.8) is a good solution for you.
In case you run several websites in one Sitecore instance and need to distinguish users between those different sites here’s what we did.