I will keep that in mind, but the current mindset is to keep things working without changing things too much, until there will be room for biger changes

Just in case it will be relevant, I'll mention that Arduino IDE 2.x uses clangd. This is done via a wrapper tool named "Arduino Language Server", which provides the necessary interpretation between the Arduino sketch framework and the standard C++ that clangd needs:

https://github.com/arduino/arduino-language-server

Thanks, I didn't realise that Arduino was using its own customised clangd LSP in its latest editor, it'd probably be better to use that.

I can edit the issue's title to say something like "Long term idea: use the Arduino LSP" if so desired?

its own customised clangd LSP

To be clear, Arduino doesn't make any modifications to the clangd application itself. We run the stock clangd from LLVM (we do build the clangd binary from source for ease of distribution, but without any modifications at all to the source code). But the separate "Arduino Language Server" tool sits between Arduino IDE and clangd.

Oh right, sorry!

I noticed the README says this:

"The Arduino Language Server is the tool that powers the auto-completion of the new Arduino IDE 2. It implements the standard Language Server Protocol so it can be used with other IDEs as well."

I imagine that would still make using Arduino's wrapper the best choice? That way should Arduino team choose to make any customisations/extensions/whatever they would be easily brought to VS Code/ium.

@M0JXD You're right. This is throwing up an error when I use with VScodium.
Is there any way to bypass this error, I just want the auto format feature

@lersi thank you for keeping this extension alive

I was going to come here to request the same thing, to keep it as foss as possible and compatible with codium. It's worth considering as an option even if it would be in beta.