diff --git a/Cargo.lock b/Cargo.lock
index 6e32e06..b9e1222 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,18 +4,18 @@ version = 3
 
 [[package]]
 name = "addr2line"
-version = "0.22.0"
+version = "0.24.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e4503c46a5c0c7844e948c9a4d6acd9f50cccb4de1c48eb9e291ea17470c678"
+checksum = "f5fb1d8e4442bd405fdfd1dacb42792696b0cf9cb15882e5d097b742a676d375"
 dependencies = [
  "gimli",
 ]
 
 [[package]]
-name = "adler"
-version = "1.0.2"
+name = "adler2"
+version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
+checksum = "512761e0bb2578dd7380c6baaa0f4ce03e84f95e960231d1dec8bf4d7d6e2627"
 
 [[package]]
 name = "aho-corasick"
@@ -28,9 +28,9 @@ dependencies = [
 
 [[package]]
 name = "anstream"
-version = "0.6.14"
+version = "0.6.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "418c75fa768af9c03be99d17643f93f79bbba589895012a80e3452a19ddda15b"
+checksum = "64e15c1ab1f89faffbf04a634d5e1962e9074f2741eef6d97f3c4e322426d526"
 dependencies = [
  "anstyle",
  "anstyle-parse",
@@ -43,33 +43,33 @@ dependencies = [
 
 [[package]]
 name = "anstyle"
-version = "1.0.7"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "038dfcf04a5feb68e9c60b21c9625a54c2c0616e79b72b0fd87075a056ae1d1b"
+checksum = "1bec1de6f59aedf83baf9ff929c98f2ad654b97c9510f4e70cf6f661d49fd5b1"
 
 [[package]]
 name = "anstyle-parse"
-version = "0.2.4"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c03a11a9034d92058ceb6ee011ce58af4a9bf61491aa7e1e59ecd24bd40d22d4"
+checksum = "eb47de1e80c2b463c735db5b217a0ddc39d612e7ac9e2e96a5aed1f57616c1cb"
 dependencies = [
  "utf8parse",
 ]
 
 [[package]]
 name = "anstyle-query"
-version = "1.0.3"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a64c907d4e79225ac72e2a354c9ce84d50ebb4586dee56c82b3ee73004f537f5"
+checksum = "6d36fc52c7f6c869915e99412912f22093507da8d9e942ceaf66fe4b7c14422a"
 dependencies = [
  "windows-sys 0.52.0",
 ]
 
 [[package]]
 name = "anstyle-wincon"
-version = "3.0.3"
+version = "3.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61a38449feb7068f52bb06c12759005cf459ee52bb4adc1d5a7c4322d716fb19"
+checksum = "5bf74e1b6e971609db8ca7a9ce79fd5768ab6ae46441c572e46cf596f59e57f8"
 dependencies = [
  "anstyle",
  "windows-sys 0.52.0",
@@ -77,13 +77,14 @@ dependencies = [
 
 [[package]]
 name = "assert_cmd"
-version = "2.0.14"
+version = "2.0.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed72493ac66d5804837f480ab3766c72bdfab91a65e565fc54fa9e42db0073a8"
+checksum = "dc1835b7f27878de8525dc71410b5a31cdcc5f230aed5ba5df968e09c201b23d"
 dependencies = [
  "anstyle",
  "bstr",
  "doc-comment",
+ "libc",
  "predicates",
  "predicates-core",
  "predicates-tree",
@@ -98,17 +99,17 @@ checksum = "0c4b4d0bd25bd0b74681c0ad21497610ce1b7c91b1022cd21c80c6fbdd9476b0"
 
 [[package]]
 name = "backtrace"
-version = "0.3.73"
+version = "0.3.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5cc23269a4f8976d0a4d2e7109211a419fe30e8d88d677cd60b6bc79c5732e0a"
+checksum = "8d82cb332cdfaed17ae235a638438ac4d4839913cc2af585c3c6746e8f8bee1a"
 dependencies = [
  "addr2line",
- "cc",
  "cfg-if",
  "libc",
  "miniz_oxide",
  "object",
  "rustc-demangle",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -120,6 +121,12 @@ dependencies = [
  "backtrace",
 ]
 
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
 [[package]]
 name = "bitflags"
 version = "2.6.0"
@@ -128,9 +135,9 @@ checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
 
 [[package]]
 name = "bstr"
-version = "1.9.1"
+version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05efc5cfd9110c8416e471df0e96702d58690178e206e61b7173706673c93706"
+checksum = "40723b8fb387abc38f4f4a37c09073622e41dd12327033091ef8950659e6dc0c"
 dependencies = [
  "memchr",
  "regex-automata",
@@ -143,12 +150,6 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
-[[package]]
-name = "cc"
-version = "1.1.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e9e8aabfac534be767c909e0690571677d49f41bd8465ae876fe043d52ba5292"
-
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@@ -157,9 +158,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "clap"
-version = "4.5.4"
+version = "4.5.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90bc066a67923782aa8515dbaea16946c5bcc5addbd668bb80af688e53e548a0"
+checksum = "3e5a21b8495e732f1b3c364c9949b201ca7bae518c502c80256c96ad79eaf6ac"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -167,9 +168,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.2"
+version = "4.5.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae129e2e766ae0ec03484e609954119f123cc1fe650337e155d03b022f24f7b4"
+checksum = "8cf2dd12af7a047ad9d6da2b6b249759a22a7abc0f474c1dae1777afa4b21a73"
 dependencies = [
  "anstream",
  "anstyle",
@@ -179,9 +180,9 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "4.5.4"
+version = "4.5.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "528131438037fd55894f62d6e9f068b8f45ac57ffa77517819645d10aed04f64"
+checksum = "501d359d5f3dcaf6ecdeee48833ae73ec6e42723a1e52419c79abf9507eec0a0"
 dependencies = [
  "heck",
  "proc-macro2",
@@ -191,15 +192,15 @@ dependencies = [
 
 [[package]]
 name = "clap_lex"
-version = "0.7.0"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "98cc8fbded0c607b7ba9dd60cd98df59af97e84d24e49c8557331cfc26d301ce"
+checksum = "1462739cb27611015575c0c11df5df7601141071f07518d56fcc1be504cbec97"
 
 [[package]]
 name = "colorchoice"
-version = "1.0.1"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b6a852b24ab71dffc585bcb46eaf7959d175cb865a7152e35b348d1b2960422"
+checksum = "d3fd119d74b830634cea2a0f58bbd0d54540518a14397557951e79340abc28c0"
 
 [[package]]
 name = "colored"
@@ -211,6 +212,21 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "crossbeam-channel"
+version = "0.5.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33480d6946193aa8033910124896ca395333cae7e2d1113d1fef6c3272217df2"
+dependencies = [
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.8.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22ec99545bb0ed0ea7bb9b8e1e9122ea386ff8a48c0922e43f36d45ab09e0e80"
+
 [[package]]
 name = "difflib"
 version = "0.4.0"
@@ -233,6 +249,27 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "file-id"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e13be71e6ca82e91bc0cb862bebaac0b2d1924a5a1d970c822b2f98b63fda8c3"
+dependencies = [
+ "winapi-util",
+]
+
+[[package]]
+name = "filetime"
+version = "0.2.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "35c0522e981e68cbfa8c3f978441a5f34b30b96e146b33cd3359176b50fe8586"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "libredox",
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "float-cmp"
 version = "0.9.0"
@@ -242,6 +279,15 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "fsevent-sys"
+version = "4.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "76ee7a02da4d231650c7cea31349b889be2f45ddb3ef3032d2ec8185f6313fd2"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "fxhash"
 version = "0.2.1"
@@ -253,9 +299,9 @@ dependencies = [
 
 [[package]]
 name = "gimli"
-version = "0.29.0"
+version = "0.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "40ecd4077b5ae9fd2e9e169b102c6c330d0605168eb0e8bf79952b256dbefffd"
+checksum = "32085ea23f3234fc7846555e85283ba4de91e21016dc0455a16286d87a292d64"
 
 [[package]]
 name = "heck"
@@ -263,6 +309,37 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
+[[package]]
+name = "hotwatch"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9140219159163c92eb58c37955a0cc57c5814c3c44521955aae376064c668756"
+dependencies = [
+ "log",
+ "notify",
+ "notify-debouncer-full",
+]
+
+[[package]]
+name = "inotify"
+version = "0.9.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8069d3ec154eb856955c1c0fbffefbf5f3c40a104ec912d4797314c1801abff"
+dependencies = [
+ "bitflags 1.3.2",
+ "inotify-sys",
+ "libc",
+]
+
+[[package]]
+name = "inotify-sys"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e05c02b5e89bff3b946cedeca278abc628fe811e604f027c45a8aa3cf793d0eb"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "is_ci"
 version = "1.2.0"
@@ -271,9 +348,29 @@ checksum = "7655c9839580ee829dfacba1d1278c2b7883e50a277ff7541299489d6bdfdc45"
 
 [[package]]
 name = "is_terminal_polyfill"
-version = "1.70.0"
+version = "1.70.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8478577c03552c21db0e2724ffb8986a5ce7af88107e6be5d2ee6e158c12800"
+checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
+
+[[package]]
+name = "kqueue"
+version = "1.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7447f1ca1b7b563588a205fe93dea8df60fd981423a768bc1c0ded35ed147d0c"
+dependencies = [
+ "kqueue-sys",
+ "libc",
+]
+
+[[package]]
+name = "kqueue-sys"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed9625ffda8729b85e45cf04090035ac368927b8cebc34898e7c120f52e4838b"
+dependencies = [
+ "bitflags 1.3.2",
+ "libc",
+]
 
 [[package]]
 name = "lace"
@@ -283,6 +380,7 @@ dependencies = [
  "clap",
  "colored",
  "fxhash",
+ "hotwatch",
  "lazy_static",
  "miette",
  "predicates",
@@ -296,9 +394,20 @@ checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
 [[package]]
 name = "libc"
-version = "0.2.154"
+version = "0.2.158"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae743338b92ff9146ce83992f766a31066a91a8c84a45e0e9f21e7cf6de6d346"
+checksum = "d8adc4bb1803a324070e64a98ae98f38934d91957a99cfb3a43dcbc01bc56439"
+
+[[package]]
+name = "libredox"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0ff37bd590ca25063e35af745c343cb7a0271906fb7b37e4813e8f79f00268d"
+dependencies = [
+ "bitflags 2.6.0",
+ "libc",
+ "redox_syscall",
+]
 
 [[package]]
 name = "linux-raw-sys"
@@ -306,11 +415,27 @@ version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78b3ae25bc7c8c38cec158d1f2757ee79e9b3740fbc7ccf0e59e4b08d793fa89"
 
+[[package]]
+name = "lock_api"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07af8b9cdd281b7915f413fa73f29ebd5d55d0d3f0155584dade1ff18cea1b17"
+dependencies = [
+ "autocfg",
+ "scopeguard",
+]
+
+[[package]]
+name = "log"
+version = "0.4.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
+
 [[package]]
 name = "memchr"
-version = "2.7.2"
+version = "2.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c8640c5d730cb13ebd907d8d04b52f55ac9a2eec55b440c8892f40d56c76c1d"
+checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
 [[package]]
 name = "miette"
@@ -345,11 +470,23 @@ dependencies = [
 
 [[package]]
 name = "miniz_oxide"
-version = "0.7.4"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2d80299ef12ff69b16a84bb182e3b9df68b5a91574d3d4fa6e41b65deec4df1"
+dependencies = [
+ "adler2",
+]
+
+[[package]]
+name = "mio"
+version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b8a240ddb74feaf34a79a7add65a741f3167852fba007066dcac1ca548d89c08"
+checksum = "a4a650543ca06a924e8b371db273b2756685faae30f8487da1b56505a8f78b0c"
 dependencies = [
- "adler",
+ "libc",
+ "log",
+ "wasi",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -358,6 +495,38 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "61807f77802ff30975e01f4f071c8ba10c022052f98b3294119f3e615d13e5be"
 
+[[package]]
+name = "notify"
+version = "6.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6205bd8bb1e454ad2e27422015fb5e4f2bcc7e08fa8f27058670d208324a4d2d"
+dependencies = [
+ "bitflags 2.6.0",
+ "crossbeam-channel",
+ "filetime",
+ "fsevent-sys",
+ "inotify",
+ "kqueue",
+ "libc",
+ "log",
+ "mio",
+ "walkdir",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "notify-debouncer-full"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f4812c1eb49be776fb8df4961623bdc01ec9dfdc1abe8211ceb09150a2e64219"
+dependencies = [
+ "crossbeam-channel",
+ "file-id",
+ "notify",
+ "parking_lot",
+ "walkdir",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.19"
@@ -369,18 +538,41 @@ dependencies = [
 
 [[package]]
 name = "object"
-version = "0.36.3"
+version = "0.36.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "27b64972346851a39438c60b341ebc01bba47464ae329e55cf343eb93964efd9"
+checksum = "084f1a5821ac4c651660a94a7153d27ac9d8a53736203f58b31945ded098070a"
 dependencies = [
  "memchr",
 ]
 
 [[package]]
 name = "owo-colors"
-version = "4.0.0"
+version = "4.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "caff54706df99d2a78a5a4e3455ff45448d81ef1bb63c22cd14052ca0e993a3f"
+checksum = "fb37767f6569cd834a413442455e0f066d0d522de8630436e2a1761d9726ba56"
+
+[[package]]
+name = "parking_lot"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1bf18183cf54e8d6059647fc3063646a1801cf30896933ec2311622cc4b9a27"
+dependencies = [
+ "lock_api",
+ "parking_lot_core",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.9.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "redox_syscall",
+ "smallvec",
+ "windows-targets 0.52.6",
+]
 
 [[package]]
 name = "predicates"
@@ -398,15 +590,15 @@ dependencies = [
 
 [[package]]
 name = "predicates-core"
-version = "1.0.6"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b794032607612e7abeb4db69adb4e33590fa6cf1149e95fd7cb00e634b92f174"
+checksum = "ae8177bee8e75d6846599c6b9ff679ed51e882816914eec639944d7c9aa11931"
 
 [[package]]
 name = "predicates-tree"
-version = "1.0.9"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "368ba315fb8c5052ab692e68a0eefec6ec57b23a36959c14496f0b0df2c0cecf"
+checksum = "41b740d195ed3166cd147c8047ec98db0e22ec019eb8eeb76d343b795304fb13"
 dependencies = [
  "predicates-core",
  "termtree",
@@ -414,22 +606,31 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.82"
+version = "1.0.86"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ad3d49ab951a01fbaafe34f2ec74122942fe18a3f9814c3268f1bb72042131b"
+checksum = "5e719e8df665df0d1c8fbfd238015744736151d4445ec0836b8e628aae103b77"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.36"
+version = "1.0.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fa76aaf39101c457836aec0ce2316dbdc3ab723cdda1c6bd4e6ad4208acaca7"
+checksum = "b5b9d34b8991d19d98081b46eacdd8eb58c6f2b201139f7c5f643cc155a633af"
 dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0884ad60e090bf1345b93da0a5de8923c93884cd03f40dfcfddd3b4bee661853"
+dependencies = [
+ "bitflags 2.6.0",
+]
+
 [[package]]
 name = "regex"
 version = "1.10.6"
@@ -444,9 +645,9 @@ dependencies = [
 
 [[package]]
 name = "regex-automata"
-version = "0.4.6"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86b83b8b9847f9bf95ef68afb0b8e6cdb80f498442f5179a29fad448fcc1eaea"
+checksum = "38caf58cc5ef2fed281f89292ef23f6365465ed9a41b7a7754eb4e26496c92df"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -467,37 +668,58 @@ checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
 
 [[package]]
 name = "rustix"
-version = "0.38.34"
+version = "0.38.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70dc5ec042f7a43c4a73241207cecc9873a06d45debb38b329f8541d85c2730f"
+checksum = "8acb788b847c24f28525660c4d7758620a7210875711f79e7f663cc152726811"
 dependencies = [
- "bitflags",
+ "bitflags 2.6.0",
  "errno",
  "libc",
  "linux-raw-sys",
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "same-file"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
+dependencies = [
+ "winapi-util",
+]
+
+[[package]]
+name = "scopeguard"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
+
 [[package]]
 name = "serde"
-version = "1.0.201"
+version = "1.0.210"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "780f1cebed1629e4753a1a38a3c72d30b97ec044f0aef68cb26650a3c5cf363c"
+checksum = "c8e3592472072e6e22e0a54d5904d9febf8508f65fb8552499a1abc7d1078c3a"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.201"
+version = "1.0.210"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c5e405930b9796f1c00bee880d03fc7e0bb4b9a11afc776885ffe84320da2865"
+checksum = "243902eda00fad750862fc144cea25caca5e20d615af0a81bee94ca738f1df1f"
 dependencies = [
  "proc-macro2",
  "quote",
  "syn",
 ]
 
+[[package]]
+name = "smallvec"
+version = "1.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
+
 [[package]]
 name = "smawk"
 version = "0.3.2"
@@ -512,9 +734,9 @@ checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
 [[package]]
 name = "supports-color"
-version = "3.0.0"
+version = "3.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9829b314621dfc575df4e409e79f9d6a66a3bd707ab73f23cb4aa3a854ac854f"
+checksum = "8775305acf21c96926c900ad056abeef436701108518cf890020387236ac5a77"
 dependencies = [
  "is_ci",
 ]
@@ -533,9 +755,9 @@ checksum = "b7401a30af6cb5818bb64852270bb722533397edcfc7344954a38f420819ece2"
 
 [[package]]
 name = "syn"
-version = "2.0.61"
+version = "2.0.77"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c993ed8ccba56ae856363b1845da7266a7cb78e1d146c8a32d54b45a8b831fc9"
+checksum = "9f35bcdf61fd8e7be6caf75f429fdca8beb3ed76584befb503b1569faee373ed"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -591,9 +813,9 @@ dependencies = [
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.12"
+version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
+checksum = "e91b56cd4cadaeb79bbf1a5645f6b4f8dc5bde8834ad5894a8db35fda9efa1fe"
 
 [[package]]
 name = "unicode-linebreak"
@@ -609,9 +831,9 @@ checksum = "0336d538f7abc86d282a4189614dfaa90810dfc2c6f6427eaf88e16311dd225d"
 
 [[package]]
 name = "utf8parse"
-version = "0.2.1"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
+checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
 
 [[package]]
 name = "wait-timeout"
@@ -622,6 +844,31 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "walkdir"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29790946404f91d9c5d06f9874efddea1dc06c5efe94541a7d6863108e3a5e4b"
+dependencies = [
+ "same-file",
+ "winapi-util",
+]
+
+[[package]]
+name = "wasi"
+version = "0.11.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+
+[[package]]
+name = "winapi-util"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
+dependencies = [
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.48.0"
@@ -637,7 +884,16 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
 dependencies = [
- "windows-targets 0.52.5",
+ "windows-targets 0.52.6",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
+dependencies = [
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -657,18 +913,18 @@ dependencies = [
 
 [[package]]
 name = "windows-targets"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6f0713a46559409d202e70e28227288446bf7841d3211583a4b53e3f6d96e7eb"
+checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
 dependencies = [
- "windows_aarch64_gnullvm 0.52.5",
- "windows_aarch64_msvc 0.52.5",
- "windows_i686_gnu 0.52.5",
+ "windows_aarch64_gnullvm 0.52.6",
+ "windows_aarch64_msvc 0.52.6",
+ "windows_i686_gnu 0.52.6",
  "windows_i686_gnullvm",
- "windows_i686_msvc 0.52.5",
- "windows_x86_64_gnu 0.52.5",
- "windows_x86_64_gnullvm 0.52.5",
- "windows_x86_64_msvc 0.52.5",
+ "windows_i686_msvc 0.52.6",
+ "windows_x86_64_gnu 0.52.6",
+ "windows_x86_64_gnullvm 0.52.6",
+ "windows_x86_64_msvc 0.52.6",
 ]
 
 [[package]]
@@ -679,9 +935,9 @@ checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
 
 [[package]]
 name = "windows_aarch64_gnullvm"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7088eed71e8b8dda258ecc8bac5fb1153c5cffaf2578fc8ff5d61e23578d3263"
+checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
 
 [[package]]
 name = "windows_aarch64_msvc"
@@ -691,9 +947,9 @@ checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
 
 [[package]]
 name = "windows_aarch64_msvc"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9985fd1504e250c615ca5f281c3f7a6da76213ebd5ccc9561496568a2752afb6"
+checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
 
 [[package]]
 name = "windows_i686_gnu"
@@ -703,15 +959,15 @@ checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88ba073cf16d5372720ec942a8ccbf61626074c6d4dd2e745299726ce8b89670"
+checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
 
 [[package]]
 name = "windows_i686_gnullvm"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87f4261229030a858f36b459e748ae97545d6f1ec60e5e0d6a3d32e0dc232ee9"
+checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
 
 [[package]]
 name = "windows_i686_msvc"
@@ -721,9 +977,9 @@ checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db3c2bf3d13d5b658be73463284eaf12830ac9a26a90c717b7f771dfe97487bf"
+checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
 
 [[package]]
 name = "windows_x86_64_gnu"
@@ -733,9 +989,9 @@ checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4e4246f76bdeff09eb48875a0fd3e2af6aada79d409d33011886d3e1581517d9"
+checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
@@ -745,9 +1001,9 @@ checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "852298e482cd67c356ddd9570386e2862b5673c85bd5f88df9ab6802b334c596"
+checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
 
 [[package]]
 name = "windows_x86_64_msvc"
@@ -757,6 +1013,6 @@ checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.52.5"
+version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bec47e5bfd1bff0eeaf6d8b485cc1074891a197ab4225d504cb7a1ab88b02bf0"
+checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
diff --git a/Cargo.toml b/Cargo.toml
index ea608c2..bfe0f47 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,6 +13,7 @@ colored = "2.1.0"
 lazy_static = "1.5.0"
 miette = { version = "7.2.0", features = ["fancy"] }
 fxhash = "0.2.1"
+hotwatch = "0.5.0"
 
 [dev-dependencies]
 assert_cmd = "2.0.14"
diff --git a/src/error.rs b/src/error.rs
index 2eecd80..97eb757 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -13,7 +13,7 @@ use crate::{
 pub fn lex_invalid_dir(span: Span, src: &'static str) -> Report {
     miette!(
         severity = Severity::Error,
-        code = "parse::dir",
+        code = "lex::dir",
         help = "check the list of available directives in the documentation.",
         labels = vec![LabeledSpan::at(span, "incorrect directive")],
         "Encountered an invalid directive.",
@@ -24,7 +24,7 @@ pub fn lex_invalid_dir(span: Span, src: &'static str) -> Report {
 pub fn lex_unclosed_str(span: Span, src: &'static str) -> Report {
     miette!(
         severity = Severity::Error,
-        code = "parse::str_lit",
+        code = "lex::str_lit",
         help = "make sure to close string literals with a \" character.",
         labels = vec![LabeledSpan::at(span, "incorrect literal")],
         "Encountered an unterminated string literal.",
@@ -35,7 +35,7 @@ pub fn lex_unclosed_str(span: Span, src: &'static str) -> Report {
 pub fn lex_invalid_lit(span: Span, src: &'static str, e: ParseIntError) -> Report {
     miette!(
         severity = Severity::Error,
-        code = "parse::bad_lit",
+        code = "lex::bad_lit",
         help = "ranges from -32,768 to 32,767 or 0 to 65,535 are allowed",
         labels = vec![LabeledSpan::at(span, "incorrect literal")],
         "Encountered an invalid literal: {e}",
diff --git a/src/lib.rs b/src/lib.rs
index a505ed4..478625d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,7 +1,7 @@
-pub mod parser;
+mod parser;
 pub use parser::AsmParser;
 
-pub mod air;
+mod air;
 pub use air::Air;
 mod runtime;
 pub use runtime::RunState;
@@ -9,3 +9,4 @@ pub use runtime::RunState;
 mod error;
 mod lexer;
 mod symbol;
+pub use symbol::{reset_state, StaticSource};
diff --git a/src/main.rs b/src/main.rs
index ec1a5ce..3330a17 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -4,13 +4,20 @@ use std::fs::{self, File};
 use std::io::Write;
 use std::ops::RangeBounds;
 use std::path::PathBuf;
+use std::process::exit;
+use std::time::Duration;
 
 use clap::builder::styling::Style;
 use clap::{Parser, Subcommand};
 use colored::Colorize;
+use hotwatch::notify::Event;
+use hotwatch::{
+    blocking::{Flow, Hotwatch},
+    EventKind,
+};
 use miette::{GraphicalTheme, IntoDiagnostic, MietteHandlerOpts, Result};
 
-use lace::{AsmParser, RunState};
+use lace::{reset_state, AsmParser, RunState, StaticSource};
 
 /// Lace is a complete & convenient assembler toolchain for the LC3 assembly language.
 #[derive(Parser)]
@@ -65,15 +72,14 @@ fn main() -> miette::Result<()> {
     if let Some(command) = args.command {
         match command {
             Command::Run { name } => {
-                let contents: &'static str =
-                    Box::leak(Box::new(fs::read_to_string(&name).into_diagnostic()?));
+                let contents = StaticSource::new(fs::read_to_string(&name).into_diagnostic()?);
                 println!(
                     "{:>12} target {}",
                     "Assembling".green().bold(),
                     name.to_str().unwrap()
                 );
                 // Process asm
-                let parser = lace::AsmParser::new(&contents)?;
+                let parser = lace::AsmParser::new(contents.src())?;
                 let mut air = parser.parse()?;
                 air.backpatch()?;
                 // Run file
@@ -88,16 +94,14 @@ fn main() -> miette::Result<()> {
                 Ok(())
             }
             Command::Compile { name, dest } => {
-                // Available until end of program
-                let contents: &'static str =
-                    Box::leak(Box::new(fs::read_to_string(&name).into_diagnostic()?));
+                let contents = StaticSource::new(fs::read_to_string(&name).into_diagnostic()?);
                 println!(
                     "{:>12} target {}",
                     "Assembling".green().bold(),
                     name.to_str().unwrap()
                 );
                 // Process asm
-                let parser = lace::AsmParser::new(&contents)?;
+                let parser = lace::AsmParser::new(contents.src())?;
                 let mut air = parser.parse()?;
                 air.backpatch()?;
                 // Write to file
@@ -124,25 +128,60 @@ fn main() -> miette::Result<()> {
                 Ok(())
             }
             Command::Check { name } => {
-                let contents: &'static str =
-                    Box::leak(Box::new(fs::read_to_string(&name).into_diagnostic()?));
                 println!(
                     "{:>12} target {}",
                     "Checking".green().bold(),
                     name.to_str().unwrap()
                 );
-                // Process asm
-                let parser = lace::AsmParser::new(&contents)?;
-                let mut air = parser.parse()?;
-                air.backpatch()?;
-                for stmt in air {
-                    let _ = stmt.emit()?;
-                }
+                check(&name);
                 println!("{:>12} with 0 errors", "Finished".green().bold(),);
                 Ok(())
             }
             Command::Clean { name } => todo!(),
-            Command::Watch { name } => todo!(),
+            Command::Watch { name } => {
+                // Clear screen and move cursor to top left
+                print!("\x1B[2J\x1B[2;1H");
+                println!(
+                    "{:>12} target {}",
+                    "Watching".green().bold(),
+                    name.clone().to_str().unwrap()
+                );
+                println!("{:>12} press CTRL+C to exit", "TIP:".cyan());
+                let mut watcher = Hotwatch::new_with_custom_delay(Duration::from_millis(500))
+                    .into_diagnostic()?;
+                watcher
+                    .watch(name.clone(), move |event: Event| match event.kind {
+                        EventKind::Modify(_) => {
+                            // Clear screen
+                            print!("\x1B[2J\x1B[2;1H");
+                            println!(
+                                "{:>12} target {}",
+                                "Watching".green().bold(),
+                                name.clone().to_str().unwrap()
+                            );
+                            println!("{:>12} re-checking...", "File changed".green());
+                            println!("{:>12} press CTRL+C to exit", "Help".cyan());
+                            match check(&name) {
+                                Ok(_) => {
+                                    println!("{:>12} no errors found", "Success!".green());
+                                }
+                                Err(e) => {
+                                    println!("\n{:?}", e);
+                                }
+                            };
+                            reset_state();
+                            Flow::Continue
+                        }
+                        EventKind::Remove(_) => {
+                            println!("{}", "Watched file was deleted. Exiting...".red());
+                            std::process::exit(1);
+                        }
+                        _ => Flow::Continue,
+                    })
+                    .into_diagnostic()?;
+                watcher.run();
+                Ok(())
+            }
             Command::Fmt { name } => todo!(),
         }
     } else {
@@ -157,6 +196,17 @@ fn main() -> miette::Result<()> {
     }
 }
 
+fn check(name: &PathBuf) -> Result<()> {
+    let contents = StaticSource::new(fs::read_to_string(&name).into_diagnostic()?);
+    let parser = lace::AsmParser::new(contents.src())?;
+    let mut air = parser.parse()?;
+    air.backpatch()?;
+    for stmt in air {
+        let _ = stmt.emit()?;
+    }
+    Ok(())
+}
+
 const LOGO: &str = r#"
       ..                                  
 x .d88"                                   
diff --git a/src/parser.rs b/src/parser.rs
index 8d93bc1..185d4fc 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -1,4 +1,4 @@
-use std::{borrow::Cow, fmt::Display, iter::Peekable, u16, vec::IntoIter};
+use std::{borrow::Cow, fmt::Display, iter::Peekable, vec::IntoIter};
 
 use miette::Result;
 
diff --git a/src/symbol.rs b/src/symbol.rs
index 9573f8d..60c4cdb 100644
--- a/src/symbol.rs
+++ b/src/symbol.rs
@@ -7,6 +7,10 @@ thread_local! {
     pub static SYMBOL_TABLE: RefCell<FxHashMap<String, u16>> = RefCell::new(FxHashMap::default());
 }
 
+pub fn reset_state() {
+    with_symbol_table(|sym| sym.clear());
+}
+
 /// Access to symbol table via closure
 pub fn with_symbol_table<R, F>(f: F) -> R
 where
@@ -15,6 +19,28 @@ where
     SYMBOL_TABLE.with_borrow_mut(f)
 }
 
+/// This is not allowed to be cloned to avoid double frees.
+pub struct StaticSource {
+    src: *mut String,
+}
+
+impl StaticSource {
+    pub fn new(src: String) -> Self {
+        let raw_ptr = Box::into_raw(Box::new(src));
+        Self { src: raw_ptr }
+    }
+
+    pub fn src(&self) -> &'static str {
+        unsafe { &*self.src }
+    }
+}
+
+impl Drop for StaticSource {
+    fn drop(&mut self) {
+        unsafe { drop(Box::from_raw(self.src)) }
+    }
+}
+
 /// Line number of referenced label
 #[derive(Clone, PartialEq, Eq, Debug)]
 pub enum Label {
diff --git a/tests/files/hw.asm b/tests/files/hw.asm
index 9551c33..ab4b198 100644
--- a/tests/files/hw.asm
+++ b/tests/files/hw.asm
@@ -1,3 +1,4 @@
+; comment
 lea r0 hw
 puts
 halt