diff --git a/Cargo.lock b/Cargo.lock
index 7d6f528..31e02ee 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -82,6 +82,15 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
 
+[[package]]
+name = "bevy"
+version = "0.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2a5cd3b24a5adb7c7378da7b3eea47639877643d11b6b087fc8a8094f2528615"
+dependencies = [
+ "bevy_internal",
+]
+
 [[package]]
 name = "bevy-butler"
 version = "0.6.1-alpha.1"
@@ -142,6 +151,22 @@ dependencies = [
  "syn 2.0.100",
 ]
 
+[[package]]
+name = "bevy_diagnostic"
+version = "0.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "048a1ff3944a534b8472516866284181eef0a75b6dd4d39b6e5925715e350766"
+dependencies = [
+ "bevy_app",
+ "bevy_ecs",
+ "bevy_platform",
+ "bevy_tasks",
+ "bevy_time",
+ "bevy_utils",
+ "const-fnv1a-hash",
+ "log",
+]
+
 [[package]]
 name = "bevy_ecs"
 version = "0.16.0"
@@ -182,6 +207,44 @@ dependencies = [
  "syn 2.0.100",
 ]
 
+[[package]]
+name = "bevy_input"
+version = "0.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "763410715714f3d4d2dcdf077af276e2e4ea93fd8081b183d446d060ea95baaa"
+dependencies = [
+ "bevy_app",
+ "bevy_ecs",
+ "bevy_math",
+ "bevy_platform",
+ "bevy_reflect",
+ "bevy_utils",
+ "derive_more",
+ "log",
+ "thiserror",
+]
+
+[[package]]
+name = "bevy_internal"
+version = "0.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "526ffd64c58004cb97308826e896c07d0e23dc056c243b97492e31cdf72e2830"
+dependencies = [
+ "bevy_app",
+ "bevy_derive",
+ "bevy_diagnostic",
+ "bevy_ecs",
+ "bevy_input",
+ "bevy_math",
+ "bevy_platform",
+ "bevy_ptr",
+ "bevy_reflect",
+ "bevy_tasks",
+ "bevy_time",
+ "bevy_transform",
+ "bevy_utils",
+]
+
 [[package]]
 name = "bevy_log"
 version = "0.16.0"
@@ -212,6 +275,25 @@ dependencies = [
  "toml_edit",
 ]
 
+[[package]]
+name = "bevy_math"
+version = "0.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1a3a926d02dc501c6156a047510bdb538dcb1fa744eeba13c824b73ba88de55"
+dependencies = [
+ "bevy_reflect",
+ "derive_more",
+ "glam",
+ "itertools 0.14.0",
+ "libm",
+ "rand",
+ "rand_distr",
+ "serde",
+ "smallvec",
+ "thiserror",
+ "variadics_please",
+]
+
 [[package]]
 name = "bevy_platform"
 version = "0.16.0"
@@ -295,6 +377,35 @@ dependencies = [
  "wasm-bindgen-futures",
 ]
 
+[[package]]
+name = "bevy_time"
+version = "0.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "456369ca10f8e039aaf273332744674844827854833ee29e28f9e161702f2f55"
+dependencies = [
+ "bevy_app",
+ "bevy_ecs",
+ "bevy_platform",
+ "bevy_reflect",
+ "log",
+]
+
+[[package]]
+name = "bevy_transform"
+version = "0.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8479cdd5461246943956a7c8347e4e5d6ff857e57add889fb50eee0b5c26ab48"
+dependencies = [
+ "bevy_app",
+ "bevy_ecs",
+ "bevy_math",
+ "bevy_reflect",
+ "bevy_tasks",
+ "derive_more",
+ "serde",
+ "thiserror",
+]
+
 [[package]]
 name = "bevy_utils"
 version = "0.16.0"
@@ -314,7 +425,7 @@ dependencies = [
  "bitflags",
  "cexpr",
  "clang-sys",
- "itertools",
+ "itertools 0.13.0",
  "log",
  "prettyplease",
  "proc-macro2",
@@ -349,6 +460,12 @@ version = "3.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1628fb46dfa0b37568d12e5edd512553eccf6a22a78e8bde00bb4aed84d5bdbf"
 
+[[package]]
+name = "bytemuck"
+version = "1.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6b1fc10dbac614ebc03540c9dbd60e83887fda27794998c6528f1782047d540"
+
 [[package]]
 name = "byteorder"
 version = "1.5.0"
@@ -422,6 +539,12 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "const-fnv1a-hash"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32b13ea120a812beba79e34316b3942a857c86ec1593cb34f27bb28272ce2cca"
+
 [[package]]
 name = "cpufeatures"
 version = "0.2.17"
@@ -671,6 +794,8 @@ version = "0.29.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8babf46d4c1c9d92deac9f7be466f76dfc4482b6452fc5024b5e8daf6ffeb3ee"
 dependencies = [
+ "bytemuck",
+ "libm",
  "serde",
 ]
 
@@ -726,6 +851,7 @@ checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
 name = "immediate_stats"
 version = "0.1.0"
 dependencies = [
+ "bevy",
  "bevy-butler",
  "bevy_app",
  "bevy_ecs",
@@ -772,6 +898,15 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b192c782037fadd9cfa75548310488aabdbf3d2da73885b31bd0abd03351285"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "js-sys"
 version = "0.3.77"
@@ -804,6 +939,12 @@ dependencies = [
  "windows-targets",
 ]
 
+[[package]]
+name = "libm"
+version = "0.2.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c9627da5196e5d8ed0b0495e61e518847578da83483c37288316d9b2e03a7f72"
+
 [[package]]
 name = "linkme"
 version = "0.3.32"
@@ -899,6 +1040,16 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "num-traits"
+version = "0.2.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
+dependencies = [
+ "autocfg",
+ "libm",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.21.3"
@@ -981,6 +1132,15 @@ dependencies = [
  "portable-atomic",
 ]
 
+[[package]]
+name = "ppv-lite86"
+version = "0.2.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85eae3c4ed2f50dcfe72643da4befc30deadb458a9b590d720cde2f2b1e97da9"
+dependencies = [
+ "zerocopy",
+]
+
 [[package]]
 name = "prettyplease"
 version = "0.2.32"
@@ -1039,6 +1199,46 @@ version = "5.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "74765f6d916ee2faa39bc8e68e4f3ed8949b48cccdac59983d287a7cb71ce9c5"
 
+[[package]]
+name = "rand"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
+dependencies = [
+ "libc",
+ "rand_chacha",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
+dependencies = [
+ "ppv-lite86",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
+dependencies = [
+ "getrandom 0.2.16",
+]
+
+[[package]]
+name = "rand_distr"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32cb0b9bc82b0a0876c2dd994a7e7a2683d3e7390ca40e6886785ef0c7e3ee31"
+dependencies = [
+ "num-traits",
+ "rand",
+]
+
 [[package]]
 name = "redox_syscall"
 version = "0.5.11"
@@ -1658,3 +1858,23 @@ checksum = "6f42320e61fe2cfd34354ecb597f86f413484a798ba44a8ca1165c58d42da6c1"
 dependencies = [
  "bitflags",
 ]
+
+[[package]]
+name = "zerocopy"
+version = "0.8.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1702d9583232ddb9174e01bb7c15a2ab8fb1bc6f227aa1233858c351a3ba0cb"
+dependencies = [
+ "zerocopy-derive",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.8.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28a6e20d751156648aa063f3800b706ee209a32c0b4d9f24be3d980b01be55ef"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.100",
+]
diff --git a/README.md b/README.md
index 7c98289..27f1c64 100644
--- a/README.md
+++ b/README.md
@@ -8,9 +8,9 @@ Includes a derive macro which propagates stat resets to any stat fields.
 struct Speed(Stat);
 
 fn main() {
+    let mut speed = Speed(Stat::new(10)); // Set base speed to 10.
+
     loop {
-        let mut speed = Speed(Stat::new(10)); // Set base speed to 10.
-        
         speed.0 *= 2.0; // Applies a multiplier to the final result.
         speed.0 += 5; // Adds a bonus to the final result.
         // The order does not matter. Bonuses are always applied before multipliers.
diff --git a/immediate_stats/Cargo.toml b/immediate_stats/Cargo.toml
index e972a0f..60d53c2 100644
--- a/immediate_stats/Cargo.toml
+++ b/immediate_stats/Cargo.toml
@@ -24,9 +24,26 @@ bevy_ecs = { version = "0.16.0", default-features = false, optional = true, feat
 bevy_reflect = { version = "0.16.0", default-features = false, optional = true }
 immediate_stats_macros = { path = "../immediate_stats_macros", default-features = false }
 
+[dev-dependencies]
+bevy = { version = "0.16.0", default-features = false }
+
 [lints.rust]
 missing_docs = "warn"
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(docsrs_dep)'] }
 unsafe_code = "deny"
 unsafe_op_in_unsafe_fn = "warn"
 unused_qualifications = "warn"
+
+[[example]]
+name = "simple_main_loop"
+path = "examples/simple_main_loop.rs"
+
+[[example]]
+name = "simple_bevy"
+path = "examples/simple_bevy.rs"
+required-features = ["bevy"]
+
+[[example]]
+name = "simple_bevy_butler"
+path = "examples/simple_bevy_butler.rs"
+required-features = ["bevy_butler"]
diff --git a/immediate_stats/examples/simple_bevy.rs b/immediate_stats/examples/simple_bevy.rs
new file mode 100644
index 0000000..377eaf2
--- /dev/null
+++ b/immediate_stats/examples/simple_bevy.rs
@@ -0,0 +1,37 @@
+//! A very simple example using Bevy. Requires the `bevy` feature flag.
+//! There are two other versions of this example, one using a simple main loop and the other using Bevy Butler.
+
+use bevy::prelude::*;
+use immediate_stats::{Stat, StatContainer, reset_component_modifiers};
+
+#[derive(StatContainer, Component)]
+struct Speed(Stat);
+
+fn main() {
+    App::new()
+        .add_plugins(MinimalPlugins)
+        .add_systems(Startup, init_speed)
+        .add_systems(PreUpdate, reset_component_modifiers::<Speed>)
+        // Modifiers must be applied before the speed can be read.
+        .add_systems(Update, (apply_modifiers, read_speed).chain())
+        .run();
+}
+
+fn init_speed(mut commands: Commands) {
+    commands.spawn(Speed(Stat::new(10))); // Set base speed to 10.
+}
+
+fn apply_modifiers(mut speeds: Query<&mut Speed>) {
+    for mut speed in &mut speeds {
+        speed.0 *= 2.0; // Applies a multiplier to the final result.
+        speed.0 += 5; // Adds a bonus to the final result.
+        // The order does not matter. Bonuses are always applied before multipliers.
+    }
+}
+
+fn read_speed(speeds: Query<&Speed>) {
+    for speed in &speeds {
+        println!("The current speed is {}.", speed.0.total());
+        assert_eq!(speed.0.total(), 30); // (10 + 5) * 2 = 30
+    }
+}
diff --git a/immediate_stats/examples/simple_bevy_butler.rs b/immediate_stats/examples/simple_bevy_butler.rs
new file mode 100644
index 0000000..1a6c095
--- /dev/null
+++ b/immediate_stats/examples/simple_bevy_butler.rs
@@ -0,0 +1,40 @@
+//! A very simple example using Bevy Butler. Requires the `bevy_butler` feature flag.
+//! There are two other versions of this example, one using a simple main loop and the other using Bevy.
+
+use bevy::prelude::*;
+use bevy_butler::{add_system, butler_plugin};
+use immediate_stats::{Stat, StatContainer};
+
+#[butler_plugin]
+struct SpeedPlugin;
+
+#[derive(StatContainer, Component)]
+#[add_component(plugin = SpeedPlugin)]
+struct Speed(Stat);
+
+fn main() {
+    App::new().add_plugins((MinimalPlugins, SpeedPlugin)).run();
+}
+
+#[add_system(plugin = SpeedPlugin, schedule = Startup)]
+fn init_speed(mut commands: Commands) {
+    commands.spawn(Speed(Stat::new(10))); // Set base speed to 10.
+}
+
+#[add_system(plugin = SpeedPlugin, schedule = Update)]
+fn apply_modifiers(mut speeds: Query<&mut Speed>) {
+    for mut speed in &mut speeds {
+        speed.0 *= 2.0; // Applies a multiplier to the final result.
+        speed.0 += 5; // Adds a bonus to the final result.
+        // The order does not matter. Bonuses are always applied before multipliers.
+    }
+}
+
+// Modifiers must be applied before the speed can be read.
+#[add_system(plugin = SpeedPlugin, schedule = Update, after = apply_modifiers)]
+fn read_speed(speeds: Query<&Speed>) {
+    for speed in &speeds {
+        println!("The current speed is {}.", speed.0.total());
+        assert_eq!(speed.0.total(), 30); // (10 + 5) * 2 = 30
+    }
+}
diff --git a/immediate_stats/examples/simple_main_loop.rs b/immediate_stats/examples/simple_main_loop.rs
new file mode 100644
index 0000000..0c5bbb3
--- /dev/null
+++ b/immediate_stats/examples/simple_main_loop.rs
@@ -0,0 +1,25 @@
+//! A very simple example using a main loop.
+//! There are two other versions of this example, one using Bevy and the other using Bevy Butler.
+
+use immediate_stats::*;
+
+#[derive(StatContainer)]
+struct Speed(Stat);
+
+fn main() {
+    let mut speed = Speed(Stat::new(10)); // Set base speed to 10.
+
+    loop {
+        // 1. Apply modifiers:
+        speed.0 *= 2.0; // Applies a multiplier to the final result.
+        speed.0 += 5; // Adds a bonus to the final result.
+        // The order does not matter. Bonuses are always applied before multipliers.
+
+        // 2. Read total:
+        println!("The current speed is {}.", speed.0.total());
+        assert_eq!(speed.0.total(), 30); // (10 + 5) * 2 = 30
+
+        // 3. Reset modifiers:
+        speed.reset_modifiers(); // Reset bonus and multiplier, so speed is back to 10.
+    }
+}
diff --git a/immediate_stats_macros/src/lib.rs b/immediate_stats_macros/src/lib.rs
index 1916c2a..9cb128b 100644
--- a/immediate_stats_macros/src/lib.rs
+++ b/immediate_stats_macros/src/lib.rs
@@ -3,7 +3,6 @@ mod bevy_butler;
 mod derive_enum;
 mod derive_struct;
 
-use darling::Error;
 use proc_macro_error::{emit_call_site_error, emit_warning, proc_macro_error};
 use quote::{ToTokens, quote};
 use syn::spanned::Spanned;
@@ -34,7 +33,8 @@ pub fn stat_container_derive(item: proc_macro::TokenStream) -> proc_macro::Token
 
     #[cfg(feature = "bevy_butler")]
     {
-        let systems = bevy_butler::register_systems(tree).unwrap_or_else(Error::write_errors);
+        let systems =
+            bevy_butler::register_systems(tree).unwrap_or_else(darling::Error::write_errors);
         quote! { #trait_impl #systems }.into()
     }