diff --git a/.github/workflows/codegen.yml b/.github/workflows/codegen.yml
deleted file mode 100644
index ad87ed1..0000000
--- a/.github/workflows/codegen.yml
+++ /dev/null
@@ -1,56 +0,0 @@
-name: codegen
-on:
-  pull_request:
-    paths:
-    - 'Cargo.lock'
-    - '**/assets/**'
-    - '**/codegen/**'
-    - '**/verify/**'
-    - '**/*codegen.rs'
-  push:
-    branches:
-    - master
-    paths:
-    - 'Cargo.lock'
-    - '**/assets/**'
-    - '**/codegen/**'
-    - '**/verify/**'
-    - '**/*codegen.rs'
-  schedule:
-  - cron: '9 9 9 * *'
-jobs:
-  codegen:
-    name: Verify Code-gen
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2
-    - name: Install Rust
-      uses: actions-rs/toolchain@v1
-      with:
-        toolchain: 1.59.0  # MSRV
-        profile: minimal
-        override: true
-        components: rustfmt
-    - uses: Swatinem/rust-cache@v1
-    - name: Verify typos-dict
-      run: |
-        cargo run --package typos-dict-codegen -- --output crates/typos-dict/src/dict_codegen.rs --check
-    - name: Verify typos-vars
-      run: |
-        cargo run --package typos-vars-codegen -- --output crates/typos-vars/src/vars_codegen.rs --check
-    - name: Verify typos-dict-verify
-      run: |
-        cargo run --package typos-dict-verify -- --input crates/typos-dict/assets/words.csv --output crates/typos-dict/assets/words.csv --check
-    - name: Verify codespell-dict
-      run: |
-        cargo run --package codespell-codegen -- --output crates/codespell-dict/src/dict_codegen.rs --check
-    - name: Verify misspell-dict
-      run: |
-        cargo run --package misspell-codegen -- --output crates/misspell-dict/src/dict_codegen.rs --check
-    - name: Verify wikipedia-dict
-      run: |
-        cargo run --package wikipedia-codegen -- --output crates/wikipedia-dict/src/dict_codegen.rs --check
-    - name: Verify varcon-dict
-      run: |
-        cargo run --package varcon-codegen -- --output crates/varcon/src/codegen.rs --check
diff --git a/Cargo.lock b/Cargo.lock
index 18ddded..aec1be7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -39,9 +39,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.58"
+version = "1.0.59"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb07d2053ccdbe10e2af2995a2f116c1330396493dc1269f6a91d0ae82e19704"
+checksum = "c91f1f46651137be86f3a2b9a8359f9ab421d04d941c62b5982e1ca21113adf9"
 
 [[package]]
 name = "assert_fs"
@@ -76,9 +76,9 @@ checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
 [[package]]
 name = "backtrace"
-version = "0.3.65"
+version = "0.3.66"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "11a17d453482a265fd5f8479f2a3f405566e6ca627837aaddb85af8b1ab8ef61"
+checksum = "cab84319d616cfb654d03394f38ab7e6f0919e181b1b57e1fd15e7fb4077d9a7"
 dependencies = [
  "addr2line",
  "cc",
@@ -115,18 +115,15 @@ checksum = "37ccbd214614c6783386c1af30caf03192f17891059cecc394b4fb119e363de3"
 
 [[package]]
 name = "bytes"
-version = "1.1.0"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4872d67bab6358e59559027aa3b9157c53d9358c51423c17554809a8858e0f8"
+checksum = "ec8a7b6a70fde80372154c65702f00a0f56f3e1c36abbc6c440484be248856db"
 
 [[package]]
 name = "cast"
-version = "0.2.7"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c24dab4283a142afa2fdca129b80ad2c6284e073930f964c3a1293c225ee39a"
-dependencies = [
- "rustc_version",
-]
+checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
 
 [[package]]
 name = "cc"
@@ -168,16 +165,6 @@ dependencies = [
  "textwrap 0.15.0",
 ]
 
-[[package]]
-name = "clap-verbosity-flag"
-version = "0.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2474445ef3370e4844f9082eef2f80e4abaf7d985781afd78b89b58e2f69a14"
-dependencies = [
- "clap 3.2.16",
- "log",
-]
-
 [[package]]
 name = "clap-verbosity-flag"
 version = "1.0.1"
@@ -222,22 +209,14 @@ dependencies = [
  "normalize-line-endings",
 ]
 
-[[package]]
-name = "codespell-codegen"
-version = "0.4.0"
-dependencies = [
- "clap 3.2.16",
- "codegenrs",
- "dictgen",
- "itertools",
- "unicase",
-]
-
 [[package]]
 name = "codespell-dict"
 version = "0.4.0"
 dependencies = [
+ "codegenrs",
  "dictgen",
+ "itertools",
+ "snapbox",
  "unicase",
 ]
 
@@ -295,9 +274,9 @@ checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"
 
 [[package]]
 name = "criterion"
-version = "0.3.5"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1604dafd25fba2fe2d5895a9da139f8dc9b319a5fe5354ca137cbbce4e178d10"
+checksum = "b01d6de93b2b6c65e17c634a26653a29d107b3c98c607c765bf38d041531cd8f"
 dependencies = [
  "atty",
  "cast",
@@ -321,9 +300,9 @@ dependencies = [
 
 [[package]]
 name = "criterion-plot"
-version = "0.4.4"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d00996de9f2f7559f7f4dc286073197f83e92256a59ed395f9aac01fe717da57"
+checksum = "2673cc8207403546f45f5fd319a974b1e6983ad1a3ee7e6041650013be041876"
 dependencies = [
  "cast",
  "itertools",
@@ -331,9 +310,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-channel"
-version = "0.5.5"
+version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c02a4d71819009c192cf4872265391563fd6a84c81ff2c0f2a7026ca4c1d85c"
+checksum = "c2dd04ddaf88237dc3b8d8f9a3c1004b506b54b3313403944054d23c0870c521"
 dependencies = [
  "cfg-if",
  "crossbeam-utils",
@@ -341,9 +320,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-deque"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6455c0ca19f0d2fbf751b908d5c55c1f5cbc65e03c4225427254b46890bdde1e"
+checksum = "715e8152b692bba2d374b53d4875445368fdf21a94751410af607a5ac677d1fc"
 dependencies = [
  "cfg-if",
  "crossbeam-epoch",
@@ -352,9 +331,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-epoch"
-version = "0.9.9"
+version = "0.9.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07db9d94cbd326813772c968ccd25999e5f8ae22f4f8d1b11effa37ef6ce281d"
+checksum = "045ebe27666471bb549370b4b0b3e51b07f56325befa4284db65fc89c02511b1"
 dependencies = [
  "autocfg",
  "cfg-if",
@@ -366,9 +345,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.10"
+version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7d82ee10ce34d7bc12c2122495e7593a9c41347ecdd64185af4ecf72cb1a7f83"
+checksum = "51887d4adc7b564537b15adcfb307936f8075dfcd5f00dde9a9f1d29383682bc"
 dependencies = [
  "cfg-if",
  "once_cell",
@@ -592,18 +571,15 @@ version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b2cf0344971ee6c64c31be0d530793fba457d322dfec2810c453d0ef228f9c3"
 dependencies = [
- "atty",
- "humantime",
  "log",
- "regex",
  "termcolor",
 ]
 
 [[package]]
 name = "fastrand"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3fcf0cee53519c866c09b5de1f6c56ff9d647101f81c1964fa632e148896cdf"
+checksum = "a7a407cfaa3385c4ae6b23e84623d48c2798d06e3e6a1878f7f59f17b3f86499"
 dependencies = [
  "instant",
 ]
@@ -639,9 +615,9 @@ dependencies = [
 
 [[package]]
 name = "gimli"
-version = "0.26.1"
+version = "0.26.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78cc372d058dcf6d5ecd98510e7fbc9e5aec4d21de70f65fea8fecebcd881bd4"
+checksum = "22030e2c5a68ec659fde1e949a745124b48e6fa8b045b7ed5bd1fe4ccc5c4e5d"
 
 [[package]]
 name = "glob"
@@ -681,9 +657,9 @@ checksum = "eabb4a44450da02c90444cf74558da904edde8fb4e9035a9a6a4e15445af0bd7"
 
 [[package]]
 name = "hashbrown"
-version = "0.12.1"
+version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db0d4cf898abf0081f964436dc980e96670a0f36863e4b83aaacdb65c9d7ccc3"
+checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 
 [[package]]
 name = "heck"
@@ -797,9 +773,9 @@ checksum = "112c678d4050afce233f4f2852bb2eb519230b3cf12f33585275537d7e41578d"
 
 [[package]]
 name = "js-sys"
-version = "0.3.58"
+version = "0.3.59"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3fac17f7123a73ca62df411b1bf727ccc805daa070338fda671c86dac1bdc27"
+checksum = "258451ab10b34f8af53416d1fdab72c22e805f0c92a1136d59470ec0b11138b2"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -871,24 +847,16 @@ dependencies = [
  "adler",
 ]
 
-[[package]]
-name = "misspell-codegen"
-version = "0.4.0"
-dependencies = [
- "clap 3.2.16",
- "codegenrs",
- "dictgen",
- "itertools",
- "regex",
- "unicase",
-]
-
 [[package]]
 name = "misspell-dict"
 version = "0.4.0"
 dependencies = [
+ "codegenrs",
  "dictgen",
+ "itertools",
  "log",
+ "regex",
+ "snapbox",
  "unicase",
 ]
 
@@ -929,9 +897,9 @@ dependencies = [
 
 [[package]]
 name = "object"
-version = "0.28.4"
+version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e42c982f2d955fac81dd7e1d0e1426a7d702acd9c98d19ab01083a6a0328c424"
+checksum = "21158b2c33aa6d4561f1c0a6ea283ca92bc54802a93b263e910746d679a7eb53"
 dependencies = [
  "memchr",
 ]
@@ -960,9 +928,9 @@ dependencies = [
 
 [[package]]
 name = "os_str_bytes"
-version = "6.1.0"
+version = "6.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21326818e99cfe6ce1e524c2a805c189a99b5ae555a35d19f9a284b427d86afa"
+checksum = "648001efe5d5c0102d8cea768e348da85d90af8ba91f0bea908f157951493cd4"
 
 [[package]]
 name = "os_type"
@@ -1014,9 +982,9 @@ dependencies = [
 
 [[package]]
 name = "plotters"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "32a3fd9ec30b9749ce28cd91f255d569591cdf937fe280c312143e3c4bad6f2a"
+checksum = "9428003b84df1496fb9d6eeee9c5f8145cb41ca375eb0dad204328888832811f"
 dependencies = [
  "num-traits",
  "plotters-backend",
@@ -1027,15 +995,15 @@ dependencies = [
 
 [[package]]
 name = "plotters-backend"
-version = "0.3.2"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d88417318da0eaf0fdcdb51a0ee6c3bed624333bff8f946733049380be67ac1c"
+checksum = "193228616381fecdc1224c62e96946dfbc73ff4384fba576e052ff8c1bea8142"
 
 [[package]]
 name = "plotters-svg"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "521fa9638fa597e1dc53e9412a4f9cefb01187ee1f7413076f9e6749e2885ba9"
+checksum = "e0918736323d1baff32ee0eade54984f6f201ad7e97d5cfb5d6ab4a358529615"
 dependencies = [
  "plotters-backend",
 ]
@@ -1105,9 +1073,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.40"
+version = "1.0.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd96a1e8ed2596c337f8eae5f24924ec83f5ad5ab21ea8e455d3566c69fbcaf7"
+checksum = "c278e965f1d8cf32d6e0e96de3d3e79712178ae67986d9cf9151f51e95aac89b"
 dependencies = [
  "unicode-ident",
 ]
@@ -1177,9 +1145,9 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.2.13"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62f25bc4c7e55e0b0b7a1d43fb893f4fa1361d0abe38b9ce4f323c2adfe6ef42"
+checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
 dependencies = [
  "bitflags",
 ]
@@ -1260,9 +1228,9 @@ checksum = "a2333e6df6d6598f2b1974829f853c2b4c5f4a6e503c10af918081aa6f8564e1"
 
 [[package]]
 name = "serde"
-version = "1.0.140"
+version = "1.0.141"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc855a42c7967b7c369eb5860f7164ef1f6f81c20c7cc1141f2a604e18723b03"
+checksum = "7af873f2c95b99fcb0bd0fe622a43e29514658873c8ceba88c4cb88833a22500"
 dependencies = [
  "serde_derive",
 ]
@@ -1279,9 +1247,9 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "1.0.140"
+version = "1.0.141"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6f2122636b9fe3b81f1cb25099fcf2d3f542cdb1d45940d56c713158884a05da"
+checksum = "75743a150d003dd863b51dc809bcad0d73f2102c53632f1e954e738192a3413f"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1313,9 +1281,9 @@ checksum = "f27f6278552951f1f2b8cf9da965d10969b2efdea95a6ec47987ab46edfe263a"
 
 [[package]]
 name = "similar"
-version = "2.1.0"
+version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e24979f63a11545f5f2c60141afe249d4f19f84581ea2138065e400941d83d3"
+checksum = "62ac7f900db32bf3fd12e0117dd3dc4da74bc52ebaac97f39668446d89694803"
 
 [[package]]
 name = "siphasher"
@@ -1325,9 +1293,9 @@ checksum = "7bd3e3206899af3f8b12af284fafc038cc1dc2b41d1b89dd17297221c5d225de"
 
 [[package]]
 name = "snapbox"
-version = "0.2.10"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "767a1d5da232b6959cd1bd5c9e8db8a7cce09c3038e89deedb49a549a2aefd93"
+checksum = "dc9f6603988128836d0ed032a28fac5fb049958e21578e9aed2ed05f69bb562a"
 dependencies = [
  "concolor",
  "content_inspector",
@@ -1345,9 +1313,9 @@ dependencies = [
 
 [[package]]
 name = "snapbox-macros"
-version = "0.2.1"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c01dea7e04cbb27ef4c86e9922184608185f7cd95c1763bc30d727cda4a5e930"
+checksum = "8a253e6f894cfa440cba00600a249fa90869d8e0ec45ab274a456e043a0ce8f2"
 
 [[package]]
 name = "static_assertions"
@@ -1484,9 +1452,9 @@ dependencies = [
 
 [[package]]
 name = "trycmd"
-version = "0.13.4"
+version = "0.13.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ffb4185126cc904642173a54c185083f410c86d1202ada6761aacf7c40829f13"
+checksum = "62a09d4fff814904dc04bf60dc19fd7ed41715e3e00dd423eb1c5636a942e2a4"
 dependencies = [
  "glob",
  "humantime",
@@ -1531,7 +1499,7 @@ dependencies = [
  "atty",
  "bstr",
  "clap 3.2.16",
- "clap-verbosity-flag 1.0.1",
+ "clap-verbosity-flag",
  "concolor",
  "concolor-clap",
  "content_inspector",
@@ -1571,32 +1539,13 @@ dependencies = [
 name = "typos-dict"
 version = "0.8.4"
 dependencies = [
- "dictgen",
- "log",
- "unicase",
-]
-
-[[package]]
-name = "typos-dict-codegen"
-version = "1.3.0"
-dependencies = [
- "clap 3.2.16",
  "codegenrs",
  "csv",
  "dictgen",
- "itertools",
- "unicase",
-]
-
-[[package]]
-name = "typos-dict-verify"
-version = "1.3.0"
-dependencies = [
- "clap 3.2.16",
- "codegenrs",
- "csv",
  "edit-distance",
  "itertools",
+ "log",
+ "snapbox",
  "unicase",
  "varcon",
 ]
@@ -1605,23 +1554,11 @@ dependencies = [
 name = "typos-vars"
 version = "0.8.2"
 dependencies = [
- "dictgen",
- "log",
- "unicase",
- "varcon-core",
-]
-
-[[package]]
-name = "typos-vars-codegen"
-version = "1.3.0"
-dependencies = [
- "clap 3.2.16",
- "clap-verbosity-flag 0.4.1",
  "codegenrs",
  "dictgen",
- "env_logger",
  "itertools",
  "log",
+ "snapbox",
  "typos",
  "unicase",
  "varcon",
@@ -1680,9 +1617,9 @@ dependencies = [
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.1"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5bd2fe26506023ed7b5e1e315add59d6f584c621d037f9368fea9cfb988f368c"
+checksum = "15c61ba63f9235225a22310255a29b806b907c9b8c964bcbd0a2c70f3f2deea7"
 
 [[package]]
 name = "unicode-segmentation"
@@ -1715,15 +1652,8 @@ dependencies = [
 name = "varcon"
 version = "0.6.2"
 dependencies = [
- "varcon-core",
-]
-
-[[package]]
-name = "varcon-codegen"
-version = "1.3.0"
-dependencies = [
- "clap 3.2.16",
  "codegenrs",
+ "snapbox",
  "varcon-core",
 ]
 
@@ -1769,9 +1699,9 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.81"
+version = "0.2.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c53b543413a17a202f4be280a7e5c62a1c69345f5de525ee64f8cfdbc954994"
+checksum = "fc7652e3f6c4706c8d9cd54832c4a4ccb9b5336e2c3bd154d5cccfbf1c1f5f7d"
 dependencies = [
  "cfg-if",
  "wasm-bindgen-macro",
@@ -1779,13 +1709,13 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.81"
+version = "0.2.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5491a68ab4500fa6b4d726bd67408630c3dbe9c4fe7bda16d5c82a1fd8c7340a"
+checksum = "662cd44805586bd52971b9586b1df85cdbbd9112e4ef4d8f41559c334dc6ac3f"
 dependencies = [
  "bumpalo",
- "lazy_static",
  "log",
+ "once_cell",
  "proc-macro2",
  "quote",
  "syn",
@@ -1794,9 +1724,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.81"
+version = "0.2.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c441e177922bc58f1e12c022624b6216378e5febc2f0533e41ba443d505b80aa"
+checksum = "b260f13d3012071dfb1512849c033b1925038373aea48ced3012c09df952c602"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -1804,9 +1734,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.81"
+version = "0.2.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7d94ac45fcf608c1f45ef53e748d35660f168490c10b23704c7779ab8f5c3048"
+checksum = "5be8e654bdd9b79216c2929ab90721aa82faf65c48cdf08bdc4e7f51357b80da"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1817,36 +1747,28 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.81"
+version = "0.2.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a89911bd99e5f3659ec4acf9c4d93b0a90fe4a2a11f15328472058edc5261be"
+checksum = "6598dd0bd3c7d51095ff6531a5b23e02acdc81804e30d8f07afb77b7215a140a"
 
 [[package]]
 name = "web-sys"
-version = "0.3.58"
+version = "0.3.59"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2fed94beee57daf8dd7d51f2b15dc2bcde92d7a72304cdf662a4371008b71b90"
+checksum = "ed055ab27f941423197eb86b2035720b1a3ce40504df082cac2ecc6ed73335a1"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
 ]
 
-[[package]]
-name = "wikipedia-codegen"
-version = "0.4.0"
-dependencies = [
- "clap 3.2.16",
- "codegenrs",
- "dictgen",
- "itertools",
- "unicase",
-]
-
 [[package]]
 name = "wikipedia-dict"
 version = "0.4.0"
 dependencies = [
+ "codegenrs",
  "dictgen",
+ "itertools",
+ "snapbox",
  "unicase",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index f9c8b43..899bde4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,13 +1,6 @@
 [workspace]
 members = [
-    "crates/typos",
-    "crates/typos-dict", "crates/typos-dict/codegen", "crates/typos-dict/verify",
-    "crates/typos-vars", "crates/typos-vars/codegen",
-    "crates/dictgen",
-    "crates/codespell-dict", "crates/codespell-dict/codegen",
-    "crates/misspell-dict", "crates/misspell-dict/codegen",
-    "crates/wikipedia-dict", "crates/wikipedia-dict/codegen",
-    "crates/varcon", "crates/varcon/codegen", "crates/varcon-core",
+    "crates/*",
 ]
 
 [package]
diff --git a/crates/codespell-dict/Cargo.toml b/crates/codespell-dict/Cargo.toml
index 157b649..5bf4dbd 100644
--- a/crates/codespell-dict/Cargo.toml
+++ b/crates/codespell-dict/Cargo.toml
@@ -25,3 +25,10 @@ release = false
 [dependencies]
 unicase = "2.5"
 dictgen = { version = "^0.2", path = "../dictgen" }
+snapbox = { version = "0.3.0", features = ["path"] }
+
+[dev-dependencies]
+unicase = "2.5"
+itertools = "0.10"
+codegenrs = "2.0"
+dictgen = { version = "^0.2", path = "../dictgen", features = ["codegen"] }
diff --git a/crates/codespell-dict/codegen/Cargo.toml b/crates/codespell-dict/codegen/Cargo.toml
deleted file mode 100644
index 1e9ad60..0000000
--- a/crates/codespell-dict/codegen/Cargo.toml
+++ /dev/null
@@ -1,22 +0,0 @@
-[package]
-name = "codespell-codegen"
-version = "0.4.0"
-authors = ["Ed Page <eopage@gmail.com>"]
-description = "Source Code Spelling Correction"
-repository = "https://github.com/crate-ci/typos"
-readme = "../README.md"
-categories = ["text-processing"]
-license = "MIT"
-edition = "2021"
-rust-version = "1.59.0"  # MSRV
-publish = false
-
-[package.metadata.release]
-release = false
-
-[dependencies]
-unicase = "2.5"
-itertools = "0.10"
-codegenrs = "2.0"
-clap = { version = "3.2", features = ["derive"] }
-dictgen = { version = "^0.2", path = "../../dictgen", features = ["codegen"] }
diff --git a/crates/codespell-dict/src/dict_codegen.rs b/crates/codespell-dict/src/dict_codegen.rs
index fa39af2..a09ff13 100644
--- a/crates/codespell-dict/src/dict_codegen.rs
+++ b/crates/codespell-dict/src/dict_codegen.rs
@@ -1,4 +1,4 @@
-// This file is code-genned by codespell-codegen
+// This file is @generated crates/codespell-dict/tests/codegen.rs
 
 pub static WORD_DICTIONARY: dictgen::DictTable<&[&str]> = dictgen::DictTable {
     keys: &[
diff --git a/crates/codespell-dict/codegen/src/main.rs b/crates/codespell-dict/tests/codegen.rs
similarity index 56%
rename from crates/codespell-dict/codegen/src/main.rs
rename to crates/codespell-dict/tests/codegen.rs
index f5046d8..3c49003 100644
--- a/crates/codespell-dict/codegen/src/main.rs
+++ b/crates/codespell-dict/tests/codegen.rs
@@ -1,6 +1,29 @@
-use clap::Parser;
+pub const DICT: &str = include_str!("../assets/dictionary.txt");
 
-pub const DICT: &str = include_str!("../../assets/dictionary.txt");
+#[test]
+fn codegen() {
+    let mut content = vec![];
+    generate(&mut content);
+
+    let content = String::from_utf8(content).unwrap();
+    let content = codegenrs::rustfmt(&content, None).unwrap();
+    snapbox::assert_eq_path("./src/dict_codegen.rs", &content);
+}
+
+fn generate<W: std::io::Write>(file: &mut W) {
+    writeln!(file, "// This file is @generated {}", file!()).unwrap();
+    writeln!(file).unwrap();
+
+    let dict = parse_dict(DICT);
+
+    dictgen::generate_table(
+        file,
+        "WORD_DICTIONARY",
+        "&[&str]",
+        dict.map(|kv| (kv.0, format!("&{:?}", kv.1))),
+    )
+    .unwrap();
+}
 
 fn parse_dict(raw: &str) -> impl Iterator<Item = (&str, Vec<&str>)> {
     raw.lines().map(|s| {
@@ -22,49 +45,3 @@ fn parse_dict(raw: &str) -> impl Iterator<Item = (&str, Vec<&str>)> {
         (typo, corrections)
     })
 }
-
-fn generate<W: std::io::Write>(file: &mut W) {
-    writeln!(
-        file,
-        "// This file is code-genned by {}",
-        env!("CARGO_PKG_NAME")
-    )
-    .unwrap();
-    writeln!(file).unwrap();
-
-    let dict = parse_dict(DICT);
-
-    dictgen::generate_table(
-        file,
-        "WORD_DICTIONARY",
-        "&[&str]",
-        dict.map(|kv| (kv.0, format!("&{:?}", kv.1))),
-    )
-    .unwrap();
-}
-
-#[derive(Debug, Parser)]
-struct Options {
-    #[clap(flatten)]
-    codegen: codegenrs::CodeGenArgs,
-    #[clap(flatten)]
-    rustmft: codegenrs::RustfmtArgs,
-}
-
-fn run() -> Result<i32, Box<dyn std::error::Error>> {
-    let options = Options::parse();
-
-    let mut content = vec![];
-    generate(&mut content);
-
-    let content = String::from_utf8(content)?;
-    let content = options.rustmft.reformat(&content)?;
-    options.codegen.write_str(&content)?;
-
-    Ok(0)
-}
-
-fn main() {
-    let code = run().unwrap();
-    std::process::exit(code);
-}
diff --git a/crates/misspell-dict/Cargo.toml b/crates/misspell-dict/Cargo.toml
index 556863f..b943fa5 100644
--- a/crates/misspell-dict/Cargo.toml
+++ b/crates/misspell-dict/Cargo.toml
@@ -26,3 +26,11 @@ release = false
 unicase = "2.5"
 log = "0.4"
 dictgen = { version = "^0.2", path = "../dictgen" }
+snapbox = { version = "0.3.0", features = ["path"] }
+
+[dev-dependencies]
+unicase = "2.5"
+itertools = "0.10"
+codegenrs = "2.0"
+regex = "1"
+dictgen = { version = "^0.2", path = "../dictgen", features = ["codegen"] }
diff --git a/crates/misspell-dict/codegen/Cargo.toml b/crates/misspell-dict/codegen/Cargo.toml
deleted file mode 100644
index 06b8e60..0000000
--- a/crates/misspell-dict/codegen/Cargo.toml
+++ /dev/null
@@ -1,23 +0,0 @@
-[package]
-name = "misspell-codegen"
-version = "0.4.0"
-authors = ["Ed Page <eopage@gmail.com>"]
-description = "Source Code Spelling Correction"
-repository = "https://github.com/crate-ci/typos"
-readme = "../README.md"
-categories = ["text-processing"]
-license = "MIT"
-edition = "2021"
-rust-version = "1.59.0"  # MSRV
-publish = false
-
-[package.metadata.release]
-release = false
-
-[dependencies]
-unicase = "2.5"
-itertools = "0.10"
-codegenrs = "2.0"
-clap = { version = "3.2", features = ["derive"] }
-regex = "1"
-dictgen = { version = "^0.2", path = "../../dictgen", features = ["codegen"] }
diff --git a/crates/misspell-dict/src/dict_codegen.rs b/crates/misspell-dict/src/dict_codegen.rs
index 1235d42..8dc8baa 100644
--- a/crates/misspell-dict/src/dict_codegen.rs
+++ b/crates/misspell-dict/src/dict_codegen.rs
@@ -1,4 +1,4 @@
-// This file is code-genned by misspell-codegen
+// This file is @generated by crates/misspell-dict/tests/codegen.rs
 
 pub static MAIN_DICTIONARY: dictgen::DictTable<&[&str]> = dictgen::DictTable {
     keys: &[
diff --git a/crates/misspell-dict/codegen/src/main.rs b/crates/misspell-dict/tests/codegen.rs
similarity index 77%
rename from crates/misspell-dict/codegen/src/main.rs
rename to crates/misspell-dict/tests/codegen.rs
index a290883..bf57cfd 100644
--- a/crates/misspell-dict/codegen/src/main.rs
+++ b/crates/misspell-dict/tests/codegen.rs
@@ -1,8 +1,53 @@
 use std::collections::HashMap;
 
-use clap::Parser;
+pub const DICT: &str = include_str!("../assets/words.go");
 
-pub const DICT: &str = include_str!("../../assets/words.go");
+#[test]
+fn codegen() {
+    let mut content = vec![];
+    generate(&mut content);
+
+    let content = String::from_utf8(content).unwrap();
+    let content = codegenrs::rustfmt(&content, None).unwrap();
+    snapbox::assert_eq_path("./src/dict_codegen.rs", content);
+}
+
+fn generate<W: std::io::Write>(file: &mut W) {
+    writeln!(file, "// This file is @generated by {}", file!()).unwrap();
+    writeln!(file).unwrap();
+
+    let Words {
+        main,
+        american,
+        british,
+    } = parse_dict(DICT);
+
+    dictgen::generate_table(
+        file,
+        "MAIN_DICTIONARY",
+        "&[&str]",
+        main.into_iter().map(|kv| (kv.0, format!("&{:?}", kv.1))),
+    )
+    .unwrap();
+
+    dictgen::generate_table(
+        file,
+        "AMERICAN_DICTIONARY",
+        "&[&str]",
+        american
+            .into_iter()
+            .map(|kv| (kv.0, format!("&{:?}", kv.1))),
+    )
+    .unwrap();
+
+    dictgen::generate_table(
+        file,
+        "BRITISH_DICTIONARY",
+        "&[&str]",
+        british.into_iter().map(|kv| (kv.0, format!("&{:?}", kv.1))),
+    )
+    .unwrap();
+}
 
 struct Words<'s> {
     main: HashMap<&'s str, Vec<&'s str>>,
@@ -54,71 +99,3 @@ fn parse_dict(raw: &str) -> Words {
         british,
     }
 }
-
-fn generate<W: std::io::Write>(file: &mut W) {
-    writeln!(
-        file,
-        "// This file is code-genned by {}",
-        env!("CARGO_PKG_NAME")
-    )
-    .unwrap();
-    writeln!(file).unwrap();
-
-    let Words {
-        main,
-        american,
-        british,
-    } = parse_dict(DICT);
-
-    dictgen::generate_table(
-        file,
-        "MAIN_DICTIONARY",
-        "&[&str]",
-        main.into_iter().map(|kv| (kv.0, format!("&{:?}", kv.1))),
-    )
-    .unwrap();
-
-    dictgen::generate_table(
-        file,
-        "AMERICAN_DICTIONARY",
-        "&[&str]",
-        american
-            .into_iter()
-            .map(|kv| (kv.0, format!("&{:?}", kv.1))),
-    )
-    .unwrap();
-
-    dictgen::generate_table(
-        file,
-        "BRITISH_DICTIONARY",
-        "&[&str]",
-        british.into_iter().map(|kv| (kv.0, format!("&{:?}", kv.1))),
-    )
-    .unwrap();
-}
-
-#[derive(Debug, Parser)]
-struct Options {
-    #[clap(flatten)]
-    codegen: codegenrs::CodeGenArgs,
-    #[clap(flatten)]
-    rustmft: codegenrs::RustfmtArgs,
-}
-
-fn run() -> Result<i32, Box<dyn std::error::Error>> {
-    let options = Options::parse();
-
-    let mut content = vec![];
-    generate(&mut content);
-
-    let content = String::from_utf8(content)?;
-    let content = options.rustmft.reformat(&content)?;
-    options.codegen.write_str(&content)?;
-
-    Ok(0)
-}
-
-fn main() {
-    let code = run().unwrap();
-    std::process::exit(code);
-}
diff --git a/crates/typos-dict/Cargo.toml b/crates/typos-dict/Cargo.toml
index 0226c9b..12ac174 100644
--- a/crates/typos-dict/Cargo.toml
+++ b/crates/typos-dict/Cargo.toml
@@ -22,3 +22,13 @@ include = [
 unicase = "2.5"
 log = "0.4"
 dictgen = { version = "^0.2", path = "../dictgen" }
+snapbox = { version = "0.3.0", features = ["path"] }
+
+[dev-dependencies]
+csv = "1.1"
+itertools = "0.10"
+edit-distance = "2.1"
+unicase = "2.5"
+codegenrs = "2.0"
+dictgen = { version = "^0.2", path = "../dictgen", features = ["codegen"] }
+varcon = { version = "^0.6", path = "../varcon" }
diff --git a/crates/typos-dict/codegen/Cargo.toml b/crates/typos-dict/codegen/Cargo.toml
deleted file mode 100644
index 5b9e436..0000000
--- a/crates/typos-dict/codegen/Cargo.toml
+++ /dev/null
@@ -1,23 +0,0 @@
-[package]
-name = "typos-dict-codegen"
-version = "1.3.0"
-authors = ["Ed Page <eopage@gmail.com>"]
-description = "Source Code Spelling Correction"
-repository = "https://github.com/crate-ci/typos"
-readme = "../../../README.md"
-categories = ["text-processing"]
-license = "MIT"
-edition = "2021"
-rust-version = "1.59.0"  # MSRV
-publish = false
-
-[package.metadata.release]
-release = false
-
-[dependencies]
-csv = "1.1"
-itertools = "0.10"
-unicase = "2.5"
-codegenrs = "2.0"
-clap = { version = "3.2", features = ["derive"] }
-dictgen = { version = "^0.2", path = "../../dictgen", features = ["codegen"] }
diff --git a/crates/typos-dict/src/dict_codegen.rs b/crates/typos-dict/src/dict_codegen.rs
index 30adaec..41c33a1 100644
--- a/crates/typos-dict/src/dict_codegen.rs
+++ b/crates/typos-dict/src/dict_codegen.rs
@@ -1,4 +1,4 @@
-// This file is code-genned by typos-dict-codegen
+// This file is @generated by crates/typos-dict/tests/codegen.rs
 #![allow(clippy::unreadable_literal)]
 
 pub static WORD_TRIE: dictgen::DictTrie<&'static [&'static str]> = dictgen::DictTrie {
diff --git a/crates/typos-dict/codegen/src/main.rs b/crates/typos-dict/tests/codegen.rs
similarity index 56%
rename from crates/typos-dict/codegen/src/main.rs
rename to crates/typos-dict/tests/codegen.rs
index d77cbfe..e7408db 100644
--- a/crates/typos-dict/codegen/src/main.rs
+++ b/crates/typos-dict/tests/codegen.rs
@@ -1,14 +1,17 @@
-use clap::Parser;
+const DICT: &[u8] = include_bytes!("../assets/words.csv");
 
-const DICT: &[u8] = include_bytes!("../../assets/words.csv");
+#[test]
+fn codegen() {
+    let mut content = vec![];
+    generate(&mut content);
+
+    let content = String::from_utf8(content).unwrap();
+    let content = codegenrs::rustfmt(&content, None).unwrap();
+    snapbox::assert_eq_path("./src/dict_codegen.rs", content);
+}
 
 fn generate<W: std::io::Write>(file: &mut W) {
-    writeln!(
-        file,
-        "// This file is code-genned by {}",
-        env!("CARGO_PKG_NAME")
-    )
-    .unwrap();
+    writeln!(file, "// This file is @generated by {}", file!()).unwrap();
     writeln!(file, "#![allow(clippy::unreadable_literal)]",).unwrap();
     writeln!(file).unwrap();
 
@@ -36,29 +39,3 @@ fn generate<W: std::io::Write>(file: &mut W) {
     )
     .unwrap();
 }
-
-#[derive(Debug, Parser)]
-struct Options {
-    #[clap(flatten)]
-    codegen: codegenrs::CodeGenArgs,
-    #[clap(flatten)]
-    rustmft: codegenrs::RustfmtArgs,
-}
-
-fn run() -> Result<i32, Box<dyn std::error::Error>> {
-    let options = Options::parse();
-
-    let mut content = vec![];
-    generate(&mut content);
-
-    let content = String::from_utf8(content)?;
-    let content = options.rustmft.reformat(&content)?;
-    options.codegen.write_str(&content)?;
-
-    Ok(0)
-}
-
-fn main() {
-    let code = run().unwrap();
-    std::process::exit(code);
-}
diff --git a/crates/typos-dict/verify/src/main.rs b/crates/typos-dict/tests/verify.rs
similarity index 89%
rename from crates/typos-dict/verify/src/main.rs
rename to crates/typos-dict/tests/verify.rs
index 884baba..dc31d7d 100644
--- a/crates/typos-dict/verify/src/main.rs
+++ b/crates/typos-dict/tests/verify.rs
@@ -3,10 +3,20 @@ use std::collections::HashMap;
 use std::collections::HashSet;
 use unicase::UniCase;
 
-use clap::Parser;
-
 type Dict = BTreeMap<UniCase<String>, Vec<String>>;
 
+#[test]
+fn verify() {
+    let asset_path = "assets/words.csv";
+    let data = std::fs::read(asset_path).unwrap();
+
+    let mut content = vec![];
+    generate(&mut content, &data);
+
+    let content = String::from_utf8(content).unwrap();
+    snapbox::assert_eq_path(asset_path, content);
+}
+
 fn generate<W: std::io::Write>(file: &mut W, dict: &[u8]) {
     let mut rows = Dict::new();
     csv::ReaderBuilder::new()
@@ -127,30 +137,3 @@ fn find_best_match<'c>(
     matches.sort_unstable();
     matches.into_iter().next().map(|(_, r)| r)
 }
-
-#[derive(Debug, Parser)]
-struct Options {
-    #[clap(short('i'), long, parse(from_os_str))]
-    input: std::path::PathBuf,
-    #[clap(flatten)]
-    codegen: codegenrs::CodeGenArgs,
-}
-
-fn run() -> Result<i32, Box<dyn std::error::Error>> {
-    let options = Options::parse();
-
-    let data = std::fs::read(&options.input).unwrap();
-
-    let mut content = vec![];
-    generate(&mut content, &data);
-
-    let content = String::from_utf8(content)?;
-    options.codegen.write_str(&content)?;
-
-    Ok(0)
-}
-
-fn main() {
-    let code = run().unwrap();
-    std::process::exit(code);
-}
diff --git a/crates/typos-dict/verify/Cargo.toml b/crates/typos-dict/verify/Cargo.toml
deleted file mode 100644
index 95a0d9f..0000000
--- a/crates/typos-dict/verify/Cargo.toml
+++ /dev/null
@@ -1,24 +0,0 @@
-[package]
-name = "typos-dict-verify"
-version = "1.3.0"
-authors = ["Ed Page <eopage@gmail.com>"]
-description = "Source Code Spelling Correction"
-repository = "https://github.com/crate-ci/typos"
-readme = "../../../README.md"
-categories = ["text-processing"]
-license = "MIT"
-edition = "2021"
-rust-version = "1.59.0"  # MSRV
-publish = false
-
-[package.metadata.release]
-release = false
-
-[dependencies]
-csv = "1.1"
-unicase = "2.5"
-codegenrs = "2.0"
-clap = { version = "3.2", features = ["derive"] }
-varcon = { version = "^0.6", path = "../../varcon" }
-itertools = "0.10"
-edit-distance = "2.1"
diff --git a/crates/typos-vars/Cargo.toml b/crates/typos-vars/Cargo.toml
index 4041fb1..fdcd851 100644
--- a/crates/typos-vars/Cargo.toml
+++ b/crates/typos-vars/Cargo.toml
@@ -23,3 +23,13 @@ unicase = "2.5"
 log = "0.4"
 dictgen = { version = "^0.2", path = "../dictgen" }
 varcon-core = { version = "^2.0", path = "../varcon-core", features = ["flags"] }
+snapbox = { version = "0.3.0", features = ["path"] }
+
+[dev-dependencies]
+varcon = { version = "^0.6", path = "../varcon", features = ["flags"] }
+varcon-core = { version = "^2.0", path = "../varcon-core", features = ["flags"] }
+typos = { version = "^0.10", path = "../typos" }
+unicase = "2.5"
+codegenrs = "2.0"
+itertools = "0.10"
+dictgen = { version = "^0.2", path = "../dictgen", features = ["codegen"] }
diff --git a/crates/typos-vars/codegen/Cargo.toml b/crates/typos-vars/codegen/Cargo.toml
deleted file mode 100644
index 2c15a01..0000000
--- a/crates/typos-vars/codegen/Cargo.toml
+++ /dev/null
@@ -1,28 +0,0 @@
-[package]
-name = "typos-vars-codegen"
-version = "1.3.0"
-authors = ["Ed Page <eopage@gmail.com>"]
-description = "Source Code Spelling Correction"
-repository = "https://github.com/crate-ci/typos"
-readme = "../../../README.md"
-categories = ["text-processing"]
-license = "MIT"
-edition = "2021"
-rust-version = "1.59.0"  # MSRV
-publish = false
-
-[package.metadata.release]
-release = false
-
-[dependencies]
-varcon = { version = "^0.6", path = "../../varcon", features = ["flags"] }
-varcon-core = { version = "^2.0", path = "../../varcon-core", features = ["flags"] }
-typos = { version = "^0.10", path = "../../typos" }
-unicase = "2.5"
-codegenrs = "2.0"
-clap = { version = "3.2", features = ["derive"] }
-clap-verbosity-flag = "0.4"
-log = "0.4"
-env_logger = "0.9"
-itertools = "0.10"
-dictgen = { version = "^0.2", path = "../../dictgen", features = ["codegen"] }
diff --git a/crates/typos-vars/src/vars_codegen.rs b/crates/typos-vars/src/vars_codegen.rs
index 7392300..d505899 100644
--- a/crates/typos-vars/src/vars_codegen.rs
+++ b/crates/typos-vars/src/vars_codegen.rs
@@ -1,4 +1,4 @@
-// This file is code-genned by typos-vars-codegen
+// This file is @generated by crates/typos-vars/tests/codegen.rs
 #![allow(clippy::unreadable_literal, clippy::type_complexity)]
 
 pub type Variants = &'static [&'static str];
diff --git a/crates/typos-vars/codegen/src/main.rs b/crates/typos-vars/tests/codegen.rs
similarity index 84%
rename from crates/typos-vars/codegen/src/main.rs
rename to crates/typos-vars/tests/codegen.rs
index 6242e20..38ada73 100644
--- a/crates/typos-vars/codegen/src/main.rs
+++ b/crates/typos-vars/tests/codegen.rs
@@ -2,7 +2,15 @@ use std::collections::BTreeMap;
 use std::collections::HashSet;
 use std::io::Write;
 
-use clap::Parser;
+#[test]
+fn codegen() {
+    let mut content = vec![];
+    generate_variations(&mut content);
+
+    let content = String::from_utf8(content).unwrap();
+    let content = codegenrs::rustfmt(&content, None).unwrap();
+    snapbox::assert_eq_path("./src/vars_codegen.rs", content);
+}
 
 static CATEGORIES: [varcon::Category; 4] = [
     varcon::Category::American,
@@ -17,12 +25,7 @@ static CATEGORIES: [varcon::Category; 4] = [
 fn generate_variations<W: std::io::Write>(file: &mut W) {
     let entries = entries();
 
-    writeln!(
-        file,
-        "// This file is code-genned by {}",
-        env!("CARGO_PKG_NAME")
-    )
-    .unwrap();
+    writeln!(file, "// This file is @generated by {}", file!(),).unwrap();
     writeln!(
         file,
         "#![allow(clippy::unreadable_literal, clippy::type_complexity)]",
@@ -272,57 +275,3 @@ fn ignore_variant(variant: &varcon_core::Variant) -> bool {
 //
 // varcon needs
 // all entries by name
-
-#[derive(Debug, Parser)]
-struct Options {
-    #[clap(flatten)]
-    codegen: codegenrs::CodeGenArgs,
-    #[clap(flatten)]
-    rustmft: codegenrs::RustfmtArgs,
-
-    #[clap(flatten)]
-    pub(crate) verbose: clap_verbosity_flag::Verbosity,
-}
-
-fn init_logging(level: Option<log::Level>) {
-    if let Some(level) = level {
-        let mut builder = env_logger::Builder::new();
-
-        builder.filter(None, level.to_level_filter());
-
-        if level == log::LevelFilter::Trace {
-            builder.format_timestamp_secs();
-        } else {
-            builder.format(|f, record| {
-                writeln!(
-                    f,
-                    "[{}] {}",
-                    record.level().to_string().to_lowercase(),
-                    record.args()
-                )
-            });
-        }
-
-        builder.init();
-    }
-}
-
-fn run() -> Result<i32, Box<dyn std::error::Error>> {
-    let mut options = Options::parse();
-    options.verbose.set_default(Some(log::Level::Info));
-    init_logging(options.verbose.log_level());
-
-    let mut content = vec![];
-    generate_variations(&mut content);
-
-    let content = String::from_utf8(content)?;
-    let content = options.rustmft.reformat(&content)?;
-    options.codegen.write_str(&content)?;
-
-    Ok(0)
-}
-
-fn main() {
-    let code = run().unwrap();
-    std::process::exit(code);
-}
diff --git a/crates/varcon/Cargo.toml b/crates/varcon/Cargo.toml
index b9f0186..e85b1e0 100644
--- a/crates/varcon/Cargo.toml
+++ b/crates/varcon/Cargo.toml
@@ -24,4 +24,9 @@ all = ["flags"]
 flags = ["varcon-core/flags"]
 
 [dependencies]
+snapbox = { version = "0.3.1", features = ["path"] }
 varcon-core = { version = "^2.0", path = "../varcon-core" }
+
+[dev-dependencies]
+codegenrs = "2.0"
+varcon-core = { version = "^2.0", path = "../varcon-core", features = ["parser"] }
diff --git a/crates/varcon/codegen/Cargo.toml b/crates/varcon/codegen/Cargo.toml
deleted file mode 100644
index 0dfe8cd..0000000
--- a/crates/varcon/codegen/Cargo.toml
+++ /dev/null
@@ -1,20 +0,0 @@
-[package]
-name = "varcon-codegen"
-version = "1.3.0"
-authors = ["Ed Page <eopage@gmail.com>"]
-description = "Source Code Spelling Correction"
-repository = "https://github.com/crate-ci/typos"
-readme = "../../../README.md"
-categories = ["text-processing"]
-license = "MIT"
-edition = "2021"
-rust-version = "1.59.0"  # MSRV
-publish = false
-
-[package.metadata.release]
-release = false
-
-[dependencies]
-codegenrs = "2.0"
-clap = { version = "3.2", features = ["derive"] }
-varcon-core = { version = "^2.0", path = "../../varcon-core", features = ["parser"] }
diff --git a/crates/varcon/src/codegen.rs b/crates/varcon/src/codegen.rs
index 0d3f28a..7444ccf 100644
--- a/crates/varcon/src/codegen.rs
+++ b/crates/varcon/src/codegen.rs
@@ -1,4 +1,4 @@
-// This file is code-genned by varcon-codegen
+// This file is @generated by crates/varcon/tests/codegen.rs
 #![allow(clippy::unreadable_literal)]
 
 use crate::*;
diff --git a/crates/varcon/codegen/src/main.rs b/crates/varcon/tests/codegen.rs
similarity index 81%
rename from crates/varcon/codegen/src/main.rs
rename to crates/varcon/tests/codegen.rs
index 596a17e..0faf8e6 100644
--- a/crates/varcon/codegen/src/main.rs
+++ b/crates/varcon/tests/codegen.rs
@@ -1,6 +1,17 @@
-use clap::Parser;
+const DICT: &[u8] = include_bytes!("../assets/varcon.txt");
 
-const DICT: &[u8] = include_bytes!("../../assets/varcon.txt");
+#[test]
+fn codegen() {
+    let mut content = vec![];
+    generate(&mut content);
+
+    let content = String::from_utf8(content).unwrap();
+    let content = codegenrs::rustfmt(&content, None).unwrap();
+    snapbox::Assert::new()
+        .normalize_paths(false)
+        .action_env(snapbox::DEFAULT_ACTION_ENV)
+        .eq_path("./src/codegen.rs", content);
+}
 
 fn generate<W: std::io::Write>(file: &mut W) {
     let dict = String::from_utf8_lossy(DICT);
@@ -8,8 +19,8 @@ fn generate<W: std::io::Write>(file: &mut W) {
 
     writeln!(
         file,
-        "// This file is code-genned by {}",
-        env!("CARGO_PKG_NAME")
+        "// This file is @generated by {}",
+        file!().replace('\\', "/")
     )
     .unwrap();
     writeln!(file, "#![allow(clippy::unreadable_literal)]",).unwrap();
@@ -70,29 +81,3 @@ fn generate<W: std::io::Write>(file: &mut W) {
     }
     writeln!(file, "];").unwrap();
 }
-
-#[derive(Debug, Parser)]
-struct Options {
-    #[clap(flatten)]
-    codegen: codegenrs::CodeGenArgs,
-    #[clap(flatten)]
-    rustmft: codegenrs::RustfmtArgs,
-}
-
-fn run() -> Result<i32, Box<dyn std::error::Error>> {
-    let options = Options::parse();
-
-    let mut content = vec![];
-    generate(&mut content);
-
-    let content = String::from_utf8(content)?;
-    let content = options.rustmft.reformat(&content)?;
-    options.codegen.write_str(&content)?;
-
-    Ok(0)
-}
-
-fn main() {
-    let code = run().unwrap();
-    std::process::exit(code);
-}
diff --git a/crates/wikipedia-dict/Cargo.toml b/crates/wikipedia-dict/Cargo.toml
index 2541066..ca714ca 100644
--- a/crates/wikipedia-dict/Cargo.toml
+++ b/crates/wikipedia-dict/Cargo.toml
@@ -25,3 +25,10 @@ release = false
 [dependencies]
 unicase = "2.5"
 dictgen = { version = "^0.2", path = "../dictgen" }
+snapbox = { version = "0.3.0", features = ["path"] }
+
+[dev-dependencies]
+unicase = "2.5"
+itertools = "0.10"
+codegenrs = "2.0"
+dictgen = { version = "^0.2", path = "../dictgen", features = ["codegen"] }
diff --git a/crates/wikipedia-dict/codegen/Cargo.toml b/crates/wikipedia-dict/codegen/Cargo.toml
deleted file mode 100644
index 05b509f..0000000
--- a/crates/wikipedia-dict/codegen/Cargo.toml
+++ /dev/null
@@ -1,22 +0,0 @@
-[package]
-name = "wikipedia-codegen"
-version = "0.4.0"
-authors = ["Ed Page <eopage@gmail.com>"]
-description = "Source Code Spelling Correction"
-repository = "https://github.com/crate-ci/typos"
-readme = "../README.md"
-categories = ["text-processing"]
-license = "MIT"
-edition = "2021"
-rust-version = "1.59.0"  # MSRV
-publish = false
-
-[package.metadata.release]
-release = false
-
-[dependencies]
-unicase = "2.5"
-itertools = "0.10"
-codegenrs = "2.0"
-clap = { version = "3.2", features = ["derive"] }
-dictgen = { version = "^0.2", path = "../../dictgen", features = ["codegen"] }
diff --git a/crates/wikipedia-dict/src/dict_codegen.rs b/crates/wikipedia-dict/src/dict_codegen.rs
index 2584e9e..fb4fb27 100644
--- a/crates/wikipedia-dict/src/dict_codegen.rs
+++ b/crates/wikipedia-dict/src/dict_codegen.rs
@@ -1,4 +1,4 @@
-// This file is code-genned by wikipedia-codegen
+// This file is @generated by crates/wikipedia-dict/tests/codegen.rs
 
 pub static WORD_DICTIONARY: dictgen::DictTable<&[&str]> = dictgen::DictTable {
     keys: &[
diff --git a/crates/wikipedia-dict/codegen/src/main.rs b/crates/wikipedia-dict/tests/codegen.rs
similarity index 56%
rename from crates/wikipedia-dict/codegen/src/main.rs
rename to crates/wikipedia-dict/tests/codegen.rs
index f5046d8..b8a9e23 100644
--- a/crates/wikipedia-dict/codegen/src/main.rs
+++ b/crates/wikipedia-dict/tests/codegen.rs
@@ -1,6 +1,29 @@
-use clap::Parser;
+pub const DICT: &str = include_str!("../assets/dictionary.txt");
 
-pub const DICT: &str = include_str!("../../assets/dictionary.txt");
+#[test]
+fn codegen() {
+    let mut content = vec![];
+    generate(&mut content);
+
+    let content = String::from_utf8(content).unwrap();
+    let content = codegenrs::rustfmt(&content, None).unwrap();
+    snapbox::assert_eq_path("./src/dict_codegen.rs", content);
+}
+
+fn generate<W: std::io::Write>(file: &mut W) {
+    writeln!(file, "// This file is @generated by {}", file!()).unwrap();
+    writeln!(file).unwrap();
+
+    let dict = parse_dict(DICT);
+
+    dictgen::generate_table(
+        file,
+        "WORD_DICTIONARY",
+        "&[&str]",
+        dict.map(|kv| (kv.0, format!("&{:?}", kv.1))),
+    )
+    .unwrap();
+}
 
 fn parse_dict(raw: &str) -> impl Iterator<Item = (&str, Vec<&str>)> {
     raw.lines().map(|s| {
@@ -22,49 +45,3 @@ fn parse_dict(raw: &str) -> impl Iterator<Item = (&str, Vec<&str>)> {
         (typo, corrections)
     })
 }
-
-fn generate<W: std::io::Write>(file: &mut W) {
-    writeln!(
-        file,
-        "// This file is code-genned by {}",
-        env!("CARGO_PKG_NAME")
-    )
-    .unwrap();
-    writeln!(file).unwrap();
-
-    let dict = parse_dict(DICT);
-
-    dictgen::generate_table(
-        file,
-        "WORD_DICTIONARY",
-        "&[&str]",
-        dict.map(|kv| (kv.0, format!("&{:?}", kv.1))),
-    )
-    .unwrap();
-}
-
-#[derive(Debug, Parser)]
-struct Options {
-    #[clap(flatten)]
-    codegen: codegenrs::CodeGenArgs,
-    #[clap(flatten)]
-    rustmft: codegenrs::RustfmtArgs,
-}
-
-fn run() -> Result<i32, Box<dyn std::error::Error>> {
-    let options = Options::parse();
-
-    let mut content = vec![];
-    generate(&mut content);
-
-    let content = String::from_utf8(content)?;
-    let content = options.rustmft.reformat(&content)?;
-    options.codegen.write_str(&content)?;
-
-    Ok(0)
-}
-
-fn main() {
-    let code = run().unwrap();
-    std::process::exit(code);
-}