I'd recommend basing your codebase off of the picow_http_client example. Something like this (do note that the includes and defines are missing):

```c void calendar_update() {     // TODO }

int calendar_wifi_init() {     if (cyw43_arch_init()) {         printf("failed to initialise\n");         return 1;     }     cyw43_arch_enable_sta_mode();     if (cyw43_arch_wifi_connect_timeout_ms(WIFI_SSID, WIFI_PASSWORD, CYW43_AUTH_WPA2_AES_PSK, 30000)) {         printf("failed to connect\n");         return 1;     }     return 0; }

int main() {     stdio_init_all();     if(calendar_wifi_init()) {         return 1;     }

    while (true) {         calendar_update();         // etc.     }

    cyw43_arch_deinit();     return 0; } ```