The really fun part: > This command is not supported in Vim9 script, because it is too easily confused with a variable name. So you can’t just write “x”, but

The really fun part: > This command is not supported in Vim9 script, because it is too easily confused with a variable name. So you can’t just write “x”, but must instead go for something bland like “exit”, or something exciting like “exe'x'”. (I’m presuming “execute 'x'” will work, but my mental model of how you’d unsupport the command in Vim9 script could be wrong.)