Making `eglot-server-programs' a custom variable?

[Arash Esbati]

Hi all,

I tried eglot only once and I had to add a lsp-server to
`eglot-server-programs'.  From this experience, is there a plan to make
this a custom variable?  If not, I suggest to change the example in
eglot manual from

  (add-to-list 'eglot-server-programs
               '(foo-mode . ("fools" "--stdio")))

to

  (with-eval-after-load 'eglot
    (add-to-list 'eglot-server-programs
                 '(foo-mode . ("fools" "--stdio"))))

for those who will copy&paste this into their init files and then wonder
why it throws an error.

Best, Arash