How do I customise `ctrlf-minibuffer-bindings` in my config?

[Atemu]

Hi there, I'm trying to move away from swiper, came across your package and found that I don't actually need swiper, just a sane fuzzy isearch interface that auto-centers.

I installed your package using spacemacs' dotspacemacs-additional-packages and enabled it with (ctrlf-mode) later in the config.
Now I want to change some of the keybinds in the minibuffer. I.e. C-n to ctrlf-previous-match, similar to how I'd interact with swiper. However, when I try to

(define-key ctrlf-minibuffer-mode-map (kbd "C-n") 'ctrlf-next-match)
(define-key ctrlf-minibuffer-mode-map (kbd "C-p") 'ctrlf-previous-match)

I get

Symbol’s value as variable is void: ctrlf-minibuffer-mode-map

The variable is only available after the ctrlf minibuffer has been opened once. How do I customise it from within my config?

[Atemu]

Is it because those keys are in the default map and get overwritten when the minibuffer is first activated?

[raxod502]

You want to put your define-key declarations inside of a with-eval-after-load for ctrlf. There is a fancy thing that the package does, which actually defers the loading of ctrlf until it is invoked, even if you have run ctrlf-mode in your init-file.