diff --git a/Cargo.lock b/Cargo.lock
line changes: +224/-34
index dd4a3d2..bbc6ae5
--- a/Cargo.lock
+++ b/Cargo.lock

@@ -12,17 +12,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "atty"
-version = "0.2.14"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
-dependencies = [
- "hermit-abi",
- "libc",
- "winapi",
-]
-
-[[package]]
 name = "autocfg"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"

@@ -35,6 +24,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
+name = "cc"
+version = "1.0.79"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f"
+
+[[package]]
 name = "cfg-if"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"

@@ -55,57 +50,101 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "3.2.23"
+version = "4.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71655c45cb9845d3270c9d6df84ebe72b4dad3c2ba3f7023ad47c144e4e473a5"
+checksum = "ce38afc168d8665cfc75c7b1dd9672e50716a137f433f070991619744a67342a"
 dependencies = [
- "atty",
  "bitflags",
+ "clap_derive",
  "clap_lex",
- "indexmap",
+ "is-terminal",
+ "once_cell",
  "strsim",
  "termcolor",
- "textwrap",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fddf67631444a3a3e3e5ac51c36a5e01335302de677bd78759eaa90ab1f46644"
+dependencies = [
+ "heck",
+ "proc-macro-error",
+ "proc-macro2",
+ "quote",
+ "syn",
 ]
 
 [[package]]
 name = "clap_lex"
-version = "0.2.4"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2850f2f5a82cbf437dd5af4d49848fbdfc27c157c3d010345776f952765261c5"
+checksum = "033f6b7a4acb1f358c742aaca805c939ee73b4c6209ae4318ec7aca81c42e646"
 dependencies = [
  "os_str_bytes",
 ]
 
 [[package]]
+name = "errno"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f639046355ee4f37944e44f60642c6f3a7efa3cf6b78c78a0d989a8ce6c396a1"
+dependencies = [
+ "errno-dragonfly",
+ "libc",
+ "winapi",
+]
+
+[[package]]
+name = "errno-dragonfly"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf"
+dependencies = [
+ "cc",
+ "libc",
+]
+
+[[package]]
 name = "glob"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d2fabcfbdc87f4758337ca535fb41a6d701b65693ce38287d856d1674551ec9b"
 
 [[package]]
-name = "hashbrown"
-version = "0.12.3"
+name = "heck"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
+checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
 
 [[package]]
 name = "hermit-abi"
-version = "0.1.19"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"
+
+[[package]]
+name = "io-lifetimes"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
+checksum = "76e86b86ae312accbf05ade23ce76b625e0e47a255712b7414037385a1c05380"
 dependencies = [
+ "hermit-abi",
  "libc",
+ "windows-sys",
 ]
 
 [[package]]
-name = "indexmap"
-version = "1.9.2"
+name = "is-terminal"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1885e79c1fc4b10f0e172c475f458b7f7b93061064d98c3293e98c5ba0c8b399"
+checksum = "21b6b32576413a8e69b90e952e4a026476040d81017b80445deda5f2d3921857"
 dependencies = [
- "autocfg",
- "hashbrown",
+ "hermit-abi",
+ "io-lifetimes",
+ "rustix",
+ "windows-sys",
 ]
 
 [[package]]

@@ -115,6 +154,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
 
 [[package]]
+name = "linux-raw-sys"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f051f77a7c8e6957c0696eac88f26b0117e54f52d3fc682ab19397a8812846a4"
+
+[[package]]
 name = "log"
 version = "0.4.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"

@@ -153,6 +198,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "once_cell"
+version = "1.17.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b7e5500299e16ebb147ae15a00a942af264cf3688f47923b8fc2cd5858f23ad3"
+
+[[package]]
 name = "os_str_bytes"
 version = "6.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"

@@ -165,6 +216,48 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
+name = "proc-macro-error"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
+dependencies = [
+ "proc-macro-error-attr",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "version_check",
+]
+
+[[package]]
+name = "proc-macro-error-attr"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "version_check",
+]
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.52"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d0e1ae9e836cc3beddd63db0df682593d7e2d3d891ae8c9083d2113e1744224"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4424af4bf778aae2051a77b60283332f386554255d722233d09fbfc7e30da2fc"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
 name = "regex"
 version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"

@@ -188,6 +281,20 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3e52c148ef37f8c375d49d5a73aa70713125b7f19095948a923f80afdeb22ec2"
 
 [[package]]
+name = "rustix"
+version = "0.36.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fd5c6ff11fecd55b40746d1995a02f2eb375bf8c00d192d521ee09f42bef37bc"
+dependencies = [
+ "bitflags",
+ "errno",
+ "io-lifetimes",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys",
+]
+
+[[package]]
 name = "static_assertions"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"

@@ -200,6 +307,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
 [[package]]
+name = "syn"
+version = "1.0.109"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
 name = "termcolor"
 version = "1.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"

@@ -209,12 +327,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "textwrap"
-version = "0.16.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "222a222a5bfe1bba4a77b45ec488a741b3cb8872e5e499451fd7d0129c9c7c3d"
-
-[[package]]
 name = "time"
 version = "0.1.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"

@@ -226,6 +338,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "unicode-ident"
+version = "1.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5464a87b239f13a63a501f2701565754bae92d243d4bb7eb12f6d57d2269bf4"
+
+[[package]]
 name = "users"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"

@@ -236,6 +354,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "version_check"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
+
+[[package]]
 name = "wasi"
 version = "0.10.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"

@@ -271,3 +395,69 @@ name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
+[[package]]
+name = "windows-sys"
+version = "0.45.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"

diff --git a/Cargo.toml b/Cargo.toml
line changes: +1/-1
index 9f5932e..d111654
--- a/Cargo.toml
+++ b/Cargo.toml

@@ -40,7 +40,7 @@ lto = true
 regex = "1.7.1"
 glob = "0.3.1"
 rust-ini = "0.13.0"
-clap = "3.2.23"
+clap = { version = "4.1.10", features = ["derive"] }
 time = "0.1.45"
 nix = "0.26.2"
 users = "0.11.0"

diff --git a/src/main.rs b/src/main.rs
line changes: +18/-32
index a5c3052..be05919
--- a/src/main.rs
+++ b/src/main.rs

@@ -31,6 +31,7 @@ extern crate glob;
 use glob::glob;
 
 extern crate clap;
+use clap::Parser;
 
 extern crate ini;
 use ini::Ini;

@@ -797,11 +798,22 @@ fn exist_audio() -> ExistResult {
     Ok(*audio_alsa.as_ref().unwrap_or(&false) || *audio_pulseaudio.as_ref().unwrap_or(&false))
 }
 
+#[derive(Parser)]
+#[command(author, version, about, long_about)]
+#[command(help_template = "\
+{name} v{version}, {author-with-newline}
+{about-with-newline}
+{usage-heading} {usage}
+
+{all-args}{after-help}
+")]
 struct CircadianLaunchOptions {
+    #[arg(short = 'f', long = "config", value_name = "FILE", default_value_t = String::from("/etc/circadian.conf"))]
     config_file: String,
-    //script_dir: String,
+    #[arg(short, long)]
     test: bool,
-    verbosity: Option<usize>,
+    #[arg(short, long = "verbose", action = clap::ArgAction::Count)]
+    verbosity: u8,
 }
 
 #[derive(Default,Debug)]

@@ -880,32 +892,6 @@ fn read_config(file_path: &str) -> Result<CircadianConfig, CircadianError> {
     Ok(config)
 }
 
-fn read_cmdline() -> CircadianLaunchOptions {
-    let matches = clap::App::new("circadian")
-        .version(env!("CARGO_PKG_VERSION"))
-        .author(env!("CARGO_PKG_AUTHORS"))
-        .about(env!("CARGO_PKG_DESCRIPTION"))
-        .args_from_usage(
-            "-f, --config=[FILE] ''
-             -t, --test 'Run idle tests and exit'
-             -v, --verbose... 'Increase output verbosity'
-             -d, --script-dir=[DIR] ''")
-        .get_matches();
-    let config = matches.value_of("config").unwrap_or("/etc/circadian.conf");
-    //let script_dir = matches.value_of("script-dir").unwrap_or("");
-    //println!("Script dir: {}", script_dir);
-    let verbosity = match matches.occurrences_of("verbose") {
-        x if x == 0 => None,
-        x => Some(x as usize)
-    };
-    CircadianLaunchOptions {
-        config_file: config.to_owned(),
-        //script_dir: script_dir.to_owned(),
-        test: matches.is_present("test"),
-        verbosity,
-    }
-}
-
 fn test_idle(config: &CircadianConfig, start: i64) -> IdleResponse {
     let now = time::now_utc().to_timespec().sec as i64;
     let tty = idle_w();

@@ -1094,19 +1080,19 @@ fn test() {
 }
 
 fn main() {
-    println!("Circadian launching.");
-    let launch_opts = read_cmdline();
+    let launch_opts = CircadianLaunchOptions::parse();
     let config = read_config(&launch_opts.config_file)
         .unwrap_or_else(|x| {
             println!("{}", x);
             println!("Could not open config file.  Exiting.");
             std::process::exit(1);
         });
+    println!("Circadian launching.");
     println!("{:?}", config);
 
     // override config verbosity from command-line
-    if let Some(verbosity) = launch_opts.verbosity {
-        VERBOSITY.store(verbosity, Ordering::SeqCst);
+    if launch_opts.verbosity as usize > config.verbosity {
+        VERBOSITY.store(launch_opts.verbosity as usize, Ordering::SeqCst);
     }
 
     // override user locale to make all command outputs uniform (e.g. when parsing column headers or dates/times)