diff --git a/src/cli/build.rs b/src/cli/build.rs
index 04193ed..30b1715 100644
--- a/src/cli/build.rs
+++ b/src/cli/build.rs
@@ -14,8 +14,8 @@ pub fn cmd() -> Command {
 pub fn run(matches: &ArgMatches) -> ExitCode {
     let debug_mode: Option<bool> = matches
         .get_flag("build-debug")
-        .then(|| true)
-        .or(matches.get_flag("build-release").then(|| false));
+        .then_some(true)
+        .or(matches.get_flag("build-release").then_some(false));
     let now = Instant::now();
     let mut project = match Project::current() {
         Ok(p) => p,
diff --git a/src/cli/completions.rs b/src/cli/completions.rs
index f1f6b8c..9be774a 100644
--- a/src/cli/completions.rs
+++ b/src/cli/completions.rs
@@ -1,4 +1,4 @@
-use clap::{Arg, ArgAction, ArgMatches, Command};
+use clap::{Arg, ArgMatches, Command};
 use clap_complete::Shell;
 use std::{io, process::ExitCode};
 
diff --git a/src/cli/explain.rs b/src/cli/explain.rs
index 100e317..f7ae8c4 100644
--- a/src/cli/explain.rs
+++ b/src/cli/explain.rs
@@ -12,7 +12,7 @@ pub fn run(matches: &ArgMatches) -> ExitCode {
     let id: &String = matches.get_one("id").unwrap();
     let code: u8 = id
         .parse()
-        .expect(format!("Code is invalid (must be 0-255)",).as_str());
+        .unwrap_or_else(|_| { panic!("{}", "Code is invalid (must be 0-255)".to_string()) });
     let notif = match diagnostic::Notification::from_code(code) {
         Some(n) => n,
         None => {
diff --git a/src/cli/sync.rs b/src/cli/sync.rs
index 49cf471..b331d8c 100644
--- a/src/cli/sync.rs
+++ b/src/cli/sync.rs
@@ -8,9 +8,9 @@ use std::fs;
 use std::str::FromStr;
 use std::{env, path::PathBuf, process::ExitCode};
 
-const DEV_BP: &'static str = "development_behavior_packs";
-const DEV_RP: &'static str = "development_resource_packs";
-const DEV_SP: &'static str = "development_skin_packs";
+const DEV_BP: &str = "development_behavior_packs";
+const DEV_RP: &str = "development_resource_packs";
+const DEV_SP: &str = "development_skin_packs";
 
 mod location {
     use crate::diagnostic;
diff --git a/src/cli/uuid/refresh.rs b/src/cli/uuid/refresh.rs
index dbfdd8e..8cf38db 100644
--- a/src/cli/uuid/refresh.rs
+++ b/src/cli/uuid/refresh.rs
@@ -58,11 +58,11 @@ fn update(uuids: &mut Uuids, packs: Vec<Pack>, kinds: Vec<String>, uuid: Option<
     .into_iter()
     .filter(|i| packs.contains(&i.1))
     {
-        if kinds.contains(&&"header".to_string()) {
+        if kinds.contains(&"header".to_string()) {
             data.0.update_header(uuid.copied());
             log::info!("Refreshed header UUID for {}", data.1);
         }
-        if kinds.contains(&&"module".to_string()) {
+        if kinds.contains(&"module".to_string()) {
             data.0.update_module(uuid.copied());
             log::info!("Refreshed module UUID for {}", data.1);
         }
diff --git a/src/cli/watch.rs b/src/cli/watch.rs
index 7e37276..2dd007e 100644
--- a/src/cli/watch.rs
+++ b/src/cli/watch.rs
@@ -97,7 +97,7 @@ where
         // ignored by gitignore. So we handle this case by including such files into the watched paths list.
         let any_external_paths = paths
             .iter()
-            .filter(|p| !p.starts_with(&paths::root()))
+            .filter(|p| !p.starts_with(paths::root()))
             .cloned();
         let mut paths = remove_ignored_files(&paths::root(), &paths[..]);
         paths.extend(any_external_paths);
diff --git a/src/filter.rs b/src/filter.rs
index 7ab0383..46951a1 100644
--- a/src/filter.rs
+++ b/src/filter.rs
@@ -8,7 +8,7 @@ pub fn evaluate(source: &str) -> Result<bool, Box<rhai::EvalAltResult>> {
         .register_fn("dll_prefix", || DLL_PREFIX)
         .register_fn("dll_suffix", || DLL_SUFFIX)
         .register_fn("env", |key: rhai::ImmutableString| {
-            env::var(key.as_str()).unwrap_or(String::new())
+            env::var(key.as_str()).unwrap_or_default()
         })
         .register_fn("env_present", |key: rhai::ImmutableString| {
             env::var(key.as_str()).is_err_and(|e| e == env::VarError::NotPresent)
diff --git a/src/health.rs b/src/health.rs
index aa99a8a..676d147 100644
--- a/src/health.rs
+++ b/src/health.rs
@@ -54,7 +54,7 @@ impl Health {
         let uuids = self.root.join(paths::uuids());
         let valid_file_format: bool = (|| {
             toml::from_str::<toml::Value>(match fs::read_to_string(&uuids) {
-                Ok(ref data) => &data,
+                Ok(ref data) => data,
                 Err(e) => {
                     log::error!("Failed to read UUID file: {}", e);
                     return false;
@@ -95,7 +95,7 @@ impl Health {
         match data {
             Err(e) => {
                 log::error!("Invalid TOML: {}", e);
-                return false;
+                false
             }
             Ok(mut data) => {
                 let mut modified = false;
diff --git a/src/localization.rs b/src/localization.rs
index 3211e8e..274bce4 100644
--- a/src/localization.rs
+++ b/src/localization.rs
@@ -8,7 +8,7 @@ use std::io::Write;
 use std::path::PathBuf;
 
 /// File extension for Minecraft language files.
-pub const LANGUAGE_FILE_EXTENSION: &'static str = "lang";
+pub const LANGUAGE_FILE_EXTENSION: &str = "lang";
 
 /// A value mapped to languages.
 pub type Localized<T> = HashMap<Language, T>;
@@ -71,12 +71,7 @@ impl Default for LanguageGroups {
 impl LanguageGroups {
     /// Returns the language group which contains `language`.
     pub fn group_of(&self, language: &Language) -> Option<&LanguageGroup> {
-        for group in &self.0 {
-            if group.contains(language) {
-                return Some(group);
-            }
-        }
-        None
+        self.0.iter().find(|&group| group.contains(language))
     }
 
     /// Adds a language to it's own group if it is not present in any group yet.
@@ -158,7 +153,7 @@ impl LanguageGroups {
 
         // Step 2
         for lang in given {
-            match self.group_of(&lang) {
+            match self.group_of(lang) {
                 Some(group) if self.group_of(target).is_some_and(|g| g == group) => {
                     return Some(lang);
                 }
@@ -173,7 +168,7 @@ impl LanguageGroups {
 
         // Step 4
         for lang in given {
-            match self.group_of(&lang) {
+            match self.group_of(lang) {
                 Some(group) if self.group_of(fallback).is_some_and(|g| g == group) => {
                     return Some(lang);
                 }
@@ -200,7 +195,7 @@ pub fn generate_language_json(dir: &PathBuf) -> Result<(), Box<dyn std::error::E
                 .extension()
                 .is_some_and(|ext| ext == LANGUAGE_FILE_EXTENSION)
         })
-        .map(|f| match f.path().file_stem() {
+        .filter_map(|f| match f.path().file_stem() {
             Some(stem) => match stem.to_str() {
                 Some(stem) => {
                     if Language::from_file_id(stem).is_some() {
@@ -222,7 +217,6 @@ pub fn generate_language_json(dir: &PathBuf) -> Result<(), Box<dyn std::error::E
                 None
             }
         })
-        .filter_map(|x| x)
         .collect();
     let json: serde_json::Value = serde_json::from_value(langs.into())?;
     let path = dir.join("languages.json");
@@ -248,8 +242,8 @@ pub fn update_language_files(
     for (key, target) in &data {
         let mut covered: Vec<&Language> = Vec::new();
         for (lang, translation) in target {
-            append_language_file(dir, &lang, &key, &translation)?;
-            covered.push(&lang);
+            append_language_file(dir, lang, key, translation)?;
+            covered.push(lang);
         }
 
         // cover all remaining languages with their fallback if present
@@ -257,14 +251,9 @@ pub fn update_language_files(
         for remaining in remaining_languages {
             if let Some(lang_with_translation) = groups.best_language(remaining, &covered, fallback)
             {
-                let translation = target.get(lang_with_translation).expect(
-                    format!(
-                        "{} should provide a translation for {}",
-                        lang_with_translation, key
-                    )
-                    .as_str(),
-                );
-                append_language_file(dir, remaining, &key, &translation)?;
+                let translation = target.get(lang_with_translation).unwrap_or_else(|| panic!("{} should provide a translation for {}",
+                        lang_with_translation, key));
+                append_language_file(dir, remaining, key, translation)?;
             } else {
                 // TODO: this is probably unreachable as `name` and `description` are always at least set
                 //       to some language
@@ -568,8 +557,8 @@ impl Language {
             L::Other(id, _name) => {
                 let pair = id
                     .split_once('-')
-                    .expect(format!("language has invalid id: {}", id).as_str());
-                vec![pair.0, "_", pair.1.to_uppercase().as_str()].join("")
+                    .unwrap_or_else(|| panic!("language has invalid id: {}", id));
+                [pair.0, "_", pair.1.to_uppercase().as_str()].join("")
             }
         }
     }
diff --git a/src/paths.rs b/src/paths.rs
index 202cb63..dfbdfd2 100644
--- a/src/paths.rs
+++ b/src/paths.rs
@@ -2,7 +2,7 @@ use std::env::current_dir;
 use std::path::PathBuf;
 
 /// The name of the file which contains the ID of the Allay project.
-pub const FINGERPRINT: &'static str = ".allay-fingerprint";
+pub const FINGERPRINT: &str = ".allay-fingerprint";
 
 /// Returns the path of the project root or [`None`] if an `allay.toml` file cannot be found.
 pub fn try_root() -> Option<PathBuf> {
diff --git a/src/project.rs b/src/project.rs
index 8bde7f7..a59c060 100644
--- a/src/project.rs
+++ b/src/project.rs
@@ -143,7 +143,7 @@ impl Project {
             )?;
 
             log::debug!("Adding fingerprint");
-            if let Err(e) = fs::write(&dest.join(paths::FINGERPRINT), self.id) {
+            if let Err(e) = fs::write(dest.join(paths::FINGERPRINT), self.id) {
                 log::error!("Failed to add fingerprint: {}", e);
             };
 
diff --git a/src/scaffolding/mod.rs b/src/scaffolding/mod.rs
index 7e14461..24c1931 100644
--- a/src/scaffolding/mod.rs
+++ b/src/scaffolding/mod.rs
@@ -1,11 +1,11 @@
 //! Project skeleton for an Allay project.
 
 /// The gitignore template.
-pub const GITIGNORE: &'static [u8] = include_bytes!("gitignore");
+pub const GITIGNORE: &[u8] = include_bytes!("gitignore");
 
 /// The configuration file (allay.toml) template.
 // TODO: use template engine to fill in info like git username in authors field
-pub const CONFIG: &'static [u8] = include_bytes!("allay.toml");
+pub const CONFIG: &[u8] = include_bytes!("allay.toml");
 
 /// The default pack icon.
-pub const PACK_ICON: &'static [u8] = include_bytes!("pack_icon.png");
+pub const PACK_ICON: &[u8] = include_bytes!("pack_icon.png");
diff --git a/src/uuid.rs b/src/uuid.rs
index 0369ba6..13934d5 100644
--- a/src/uuid.rs
+++ b/src/uuid.rs
@@ -75,15 +75,15 @@ pub struct Uuids {
     pub wt: Data,
 }
 
-impl Into<Table> for Uuids {
-    fn into(self) -> Table {
+impl From<Uuids> for Table {
+    fn from(val: Uuids) -> Self {
         let mut table = Table::new();
         table.add_row(row![b => "", "Header", "Module", "Dependencies"]);
         for (name, pack) in [
-            ("BP", self.bp),
-            ("RP", self.rp),
-            ("SP", self.sp),
-            ("WT", self.wt),
+            ("BP", val.bp),
+            ("RP", val.rp),
+            ("SP", val.sp),
+            ("WT", val.wt),
         ] {
             table.add_row(row![
                 name,