Simple test dylib I frequently use. Probably not useful to you.

proof.m

//
//  proof.m
//  proof
//
//  Created by ruter on 10.08.26.
//

#import <UIKit/UIKit.h>

__attribute__((constructor))
static void entry(void) {
    dispatch_async(dispatch_get_main_queue(), ^{
        UIWindow *key_win = nil;

        for (UIScene *scene in UIApplication.sharedApplication.connectedScenes) {
            if ([scene isKindOfClass:[UIWindowScene class]]) {
                for (UIWindow *window in ((UIWindowScene *)scene).windows) {
                    if (window.isKeyWindow) {
                        key_win = window;
                        break;
                    }
                }
            }
        }

        if (!key_win) return;

        UIViewController *root_vc = key_win.rootViewController;
        if (!root_vc) return;

        UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"ROOOOT.DEV // WE OUT HERE!" message:nil preferredStyle:UIAlertControllerStyleAlert];
        [alert addAction:[UIAlertAction actionWithTitle:@"aight" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
            [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"https://roooot.dev/"] options:@{} completionHandler:nil];
        }]];

        [root_vc presentViewController:alert animated:YES completion:nil];
    });
}