An basic empty bevy app template with all the plugins I use

empty_bevy_app.rs

use bevy::diagnostic::{FrameTimeDiagnosticsPlugin, LogDiagnosticsPlugin};
use bevy::prelude::*;
use bevy::window::close_on_esc;

const WW: f32 = 1200.0;
const WH: f32 = 900.0;
const BG_COLOR: (u8, u8, u8) = (25, 20, 43);

fn main() {
    App::new()
        .add_plugins(
            DefaultPlugins
                .set(ImagePlugin::default_nearest())
                .set(WindowPlugin {
                    primary_window: Some(Window {
                        resizable: true,
                        focused: true,
                        resolution: (WW, WH).into(),
                        ..default()
                    }),
                    ..default()
                }),
        )
        .insert_resource(ClearColor(Color::rgb_u8(
            BG_COLOR.0, BG_COLOR.1, BG_COLOR.2,
        )))
        .insert_resource(Msaa::Off)
        .add_plugins(LogDiagnosticsPlugin::default())
        .add_plugins(FrameTimeDiagnosticsPlugin)
        .add_systems(Startup, setup)
        .add_systems(Update, close_on_esc)
        .run();
}

fn setup(mut commands: Commands) {
    commands.spawn(Camera2dBundle::default());
}

Initial setup that goes into cargo.toml

[workspace]
resolver = "2" # Important! wgpu/Bevy needs this!

# Enable a small amount of optimization in debug mode
[profile.dev]
opt-level = 1

# Enable high optimizations for dependencies (incl. Bevy), but not for our code:
[profile.dev.package."*"]
opt-level = 3