diff --git a/.github/workflows/mac.yaml b/.github/workflows/mac.yaml
index 4f89764..b2d7670 100644
--- a/.github/workflows/mac.yaml
+++ b/.github/workflows/mac.yaml
@@ -26,6 +26,10 @@ jobs:
       - name: NPM
         run: npm ci
 
+      - name: NPM util/mac
+        working-directory: util/mac
+        run: npm ci
+
       - name: shockpkg Cache
         uses: actions/cache@v3
         with:
diff --git a/.github/workflows/windows.yaml b/.github/workflows/windows.yaml
index 518f3ad..eac5a09 100644
--- a/.github/workflows/windows.yaml
+++ b/.github/workflows/windows.yaml
@@ -27,6 +27,10 @@ jobs:
       - name: NPM
         run: npm ci
 
+      - name: NPM util/windows
+        working-directory: util/windows
+        run: npm ci
+
       - name: shockpkg Cache
         uses: actions/cache@v3
         with:
diff --git a/make.mjs b/make.mjs
index 2bc676f..c5cd1dc 100644
--- a/make.mjs
+++ b/make.mjs
@@ -27,8 +27,9 @@ import {
 	distName
 } from './util/meta.mjs';
 import {docs} from './util/doc.mjs';
-import {isMac, codesign} from './util/mac.mjs';
-import {makeZip, makeTgz, makeExe, makeDmg} from './util/dist.mjs';
+import {zip, tgz} from './util/archive.mjs';
+import {isMac, codesign, dmg} from './util/mac/index.mjs';
+import {exe} from './util/windows/index.mjs';
 import {flash4FpsCap, setFps} from './util/fps.mjs';
 
 async function * resources() {
@@ -92,8 +93,8 @@ for (const [type, flat] of Object.entries({
 }
 
 for (const [type, make] of Object.entries({
-	'zip': makeZip,
-	'tgz': makeTgz
+	'zip': zip,
+	'tgz': tgz
 })) {
 	task[`dist:browser:${type}`] = async () => {
 		await make(`dist/${distName}-Browser.${type}`, 'build/browser');
@@ -136,10 +137,10 @@ for (const [type, pkg] of Object.entries({
 		await docs('docs', build);
 	};
 	task[`dist:windows-${type}:zip`] = async () => {
-		await makeZip(`dist/${distName}-Windows-${type}.zip`, build);
+		await zip(`dist/${distName}-Windows-${type}.zip`, build);
 	};
 	task[`dist:windows-${type}:exe`] = async () => {
-		await makeExe(
+		await exe(
 			`dist/${distName}-Windows-${type}.exe`,
 			/x86_64/.test(type) ? 'x64 arm64' : '',
 			appDomain,
@@ -216,10 +217,10 @@ for (const [type, pkg] of Object.entries({
 		await docs('docs', build);
 	};
 	task[`dist:mac-${type}:tgz`] = async () => {
-		await makeTgz(`dist/${distName}-Mac-${type}.tgz`, build);
+		await tgz(`dist/${distName}-Mac-${type}.tgz`, build);
 	};
 	task[`dist:mac-${type}:dmg`] = async () => {
-		await makeDmg(
+		await dmg(
 			`dist/${distName}-Mac-${type}.dmg`,
 			appDmgTitle,
 			'res/dmg-icon.icns',
@@ -259,7 +260,7 @@ for (const [type, pkg] of Object.entries({
 		await docs('docs', build);
 	};
 	task[`dist:linux-${type}:tgz`] = async () => {
-		await makeTgz(`dist/${distName}-Linux-${type}.tgz`, build);
+		await tgz(`dist/${distName}-Linux-${type}.tgz`, build);
 	};
 }
 
diff --git a/package-lock.json b/package-lock.json
index 09dd45e..e69cdf8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,13 +12,9 @@
 				"@shockpkg/plist-dom": "^4.0.3",
 				"@shockpkg/swf-projector": "^6.0.5",
 				"archiver": "^6.0.1",
-				"innosetup": "^6.0.5",
 				"marked": "^9.1.2",
 				"marked-gfm-heading-id": "^3.1.0",
 				"tar": "^6.2.0"
-			},
-			"optionalDependencies": {
-				"appdmg": "^0.6.6"
 			}
 		},
 		"node_modules/@cspotcode/source-map-support": {
@@ -311,34 +307,6 @@
 			"resolved": "https://registry.npmjs.org/ansicolors/-/ansicolors-0.3.2.tgz",
 			"integrity": "sha512-QXu7BPrP29VllRxH8GwB7x5iX5qWKAAMLqKQGWTeLWVlNHNOpVMJ91dsxQAIWXpjuW5wqvxu3Jd/nRjrJ+0pqg=="
 		},
-		"node_modules/appdmg": {
-			"version": "0.6.6",
-			"resolved": "https://registry.npmjs.org/appdmg/-/appdmg-0.6.6.tgz",
-			"integrity": "sha512-GRmFKlCG+PWbcYF4LUNonTYmy0GjguDy6Jh9WP8mpd0T6j80XIJyXBiWlD0U+MLNhqV9Nhx49Gl9GpVToulpLg==",
-			"optional": true,
-			"os": [
-				"darwin"
-			],
-			"dependencies": {
-				"async": "^1.4.2",
-				"ds-store": "^0.1.5",
-				"execa": "^1.0.0",
-				"fs-temp": "^1.0.0",
-				"fs-xattr": "^0.3.0",
-				"image-size": "^0.7.4",
-				"is-my-json-valid": "^2.20.0",
-				"minimist": "^1.1.3",
-				"parse-color": "^1.0.0",
-				"path-exists": "^4.0.0",
-				"repeat-string": "^1.5.4"
-			},
-			"bin": {
-				"appdmg": "bin/appdmg.js"
-			},
-			"engines": {
-				"node": ">=8.5"
-			}
-		},
 		"node_modules/archiver": {
 			"version": "6.0.1",
 			"resolved": "https://registry.npmjs.org/archiver/-/archiver-6.0.1.tgz",
@@ -406,12 +374,6 @@
 				"node": ">=8"
 			}
 		},
-		"node_modules/async": {
-			"version": "1.5.2",
-			"resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
-			"integrity": "sha512-nSVgobk4rv61R9PUSDtYt7mPVB2olxNR5RWJcAsH676/ef11bUZwvu7+RGYrYauVdDPcO519v68wRhXQtxsV9w==",
-			"optional": true
-		},
 		"node_modules/b4a": {
 			"version": "1.6.4",
 			"resolved": "https://registry.npmjs.org/b4a/-/b4a-1.6.4.tgz",
@@ -422,15 +384,6 @@
 			"resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
 			"integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw=="
 		},
-		"node_modules/base32-encode": {
-			"version": "1.2.0",
-			"resolved": "https://registry.npmjs.org/base32-encode/-/base32-encode-1.2.0.tgz",
-			"integrity": "sha512-cHFU8XeRyx0GgmoWi5qHMCVRiqU6J3MHWxVgun7jggCBUpVzm1Ir7M9dYr2whjSNc3tFeXfQ/oZjQu/4u55h9A==",
-			"optional": true,
-			"dependencies": {
-				"to-data-view": "^1.1.0"
-			}
-		},
 		"node_modules/base64-js": {
 			"version": "1.5.1",
 			"resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
@@ -450,15 +403,6 @@
 				}
 			]
 		},
-		"node_modules/bplist-creator": {
-			"version": "0.0.8",
-			"resolved": "https://registry.npmjs.org/bplist-creator/-/bplist-creator-0.0.8.tgz",
-			"integrity": "sha512-Za9JKzD6fjLC16oX2wsXfc+qBEhJBJB1YPInoAQpMLhDuj5aVOv1baGeIQSq1Fr3OCqzvsoQcSBSwGId/Ja2PA==",
-			"optional": true,
-			"dependencies": {
-				"stream-buffers": "~2.2.0"
-			}
-		},
 		"node_modules/brace-expansion": {
 			"version": "2.0.1",
 			"resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
@@ -653,22 +597,6 @@
 			"resolved": "https://registry.npmjs.org/create-require/-/create-require-1.1.1.tgz",
 			"integrity": "sha512-dcKFX3jn0MpIaXjisoRvexIJVEKzaq7z2rZKxf+MSr9TkdmHmsU4m2lcLojrj/FHl8mk5VxMmYA+ftRkP/3oKQ=="
 		},
-		"node_modules/cross-spawn": {
-			"version": "6.0.5",
-			"resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
-			"integrity": "sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==",
-			"optional": true,
-			"dependencies": {
-				"nice-try": "^1.0.4",
-				"path-key": "^2.0.1",
-				"semver": "^5.5.0",
-				"shebang-command": "^1.2.0",
-				"which": "^1.2.9"
-			},
-			"engines": {
-				"node": ">=4.8"
-			}
-		},
 		"node_modules/debug": {
 			"version": "4.3.4",
 			"resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
@@ -704,17 +632,6 @@
 				"node": ">=8"
 			}
 		},
-		"node_modules/ds-store": {
-			"version": "0.1.6",
-			"resolved": "https://registry.npmjs.org/ds-store/-/ds-store-0.1.6.tgz",
-			"integrity": "sha512-kY21M6Lz+76OS3bnCzjdsJSF7LBpLYGCVfavW8TgQD2XkcqIZ86W0y9qUDZu6fp7SIZzqosMDW2zi7zVFfv4hw==",
-			"optional": true,
-			"dependencies": {
-				"bplist-creator": "~0.0.3",
-				"macos-alias": "~0.2.5",
-				"tn1150": "^0.1.0"
-			}
-		},
 		"node_modules/ejs": {
 			"version": "3.1.9",
 			"resolved": "https://registry.npmjs.org/ejs/-/ejs-3.1.9.tgz",
@@ -734,21 +651,6 @@
 			"resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
 			"integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A=="
 		},
-		"node_modules/encode-utf8": {
-			"version": "1.0.3",
-			"resolved": "https://registry.npmjs.org/encode-utf8/-/encode-utf8-1.0.3.tgz",
-			"integrity": "sha512-ucAnuBEhUK4boH2HjVYG5Q2mQyPorvv0u/ocS+zhdw0S8AlHYY+GOFhP1Gio5z4icpP2ivFSvhtFjQi8+T9ppw==",
-			"optional": true
-		},
-		"node_modules/end-of-stream": {
-			"version": "1.4.4",
-			"resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.4.tgz",
-			"integrity": "sha512-+uw1inIHVPQoaVuHzRyXd21icM+cnt4CzD5rW+NC1wjOUSTOs+Te7FOv7AhN7vS9x/oIyhLP5PR1H+phQAHu5Q==",
-			"optional": true,
-			"dependencies": {
-				"once": "^1.4.0"
-			}
-		},
 		"node_modules/escape-string-regexp": {
 			"version": "4.0.0",
 			"resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-4.0.0.tgz",
@@ -772,24 +674,6 @@
 				"node": ">=4"
 			}
 		},
-		"node_modules/execa": {
-			"version": "1.0.0",
-			"resolved": "https://registry.npmjs.org/execa/-/execa-1.0.0.tgz",
-			"integrity": "sha512-adbxcyWV46qiHyvSp50TKt05tB4tK3HcmF7/nxfAdhnox83seTDbwnaqKO4sXRy7roHAIFqJP/Rw/AuEbX61LA==",
-			"optional": true,
-			"dependencies": {
-				"cross-spawn": "^6.0.0",
-				"get-stream": "^4.0.0",
-				"is-stream": "^1.1.0",
-				"npm-run-path": "^2.0.0",
-				"p-finally": "^1.0.0",
-				"signal-exit": "^3.0.0",
-				"strip-eof": "^1.0.0"
-			},
-			"engines": {
-				"node": ">=6"
-			}
-		},
 		"node_modules/fast-fifo": {
 			"version": "1.3.2",
 			"resolved": "https://registry.npmjs.org/fast-fifo/-/fast-fifo-1.3.2.tgz",
@@ -845,15 +729,6 @@
 				"node": ">=8"
 			}
 		},
-		"node_modules/fmix": {
-			"version": "0.1.0",
-			"resolved": "https://registry.npmjs.org/fmix/-/fmix-0.1.0.tgz",
-			"integrity": "sha512-Y6hyofImk9JdzU8k5INtTXX1cu8LDlePWDFU5sftm9H+zKCr5SGrVjdhkvsim646cw5zD0nADj8oHyXMZmCZ9w==",
-			"optional": true,
-			"dependencies": {
-				"imul": "^1.0.0"
-			}
-		},
 		"node_modules/fs-minipass": {
 			"version": "2.1.0",
 			"resolved": "https://registry.npmjs.org/fs-minipass/-/fs-minipass-2.1.0.tgz",
@@ -876,51 +751,11 @@
 				"node": ">=8"
 			}
 		},
-		"node_modules/fs-temp": {
-			"version": "1.2.1",
-			"resolved": "https://registry.npmjs.org/fs-temp/-/fs-temp-1.2.1.tgz",
-			"integrity": "sha512-okTwLB7/Qsq82G6iN5zZJFsOfZtx2/pqrA7Hk/9fvy+c+eJS9CvgGXT2uNxwnI14BDY9L/jQPkaBgSvlKfSW9w==",
-			"optional": true,
-			"dependencies": {
-				"random-path": "^0.1.0"
-			}
-		},
-		"node_modules/fs-xattr": {
-			"version": "0.3.1",
-			"resolved": "https://registry.npmjs.org/fs-xattr/-/fs-xattr-0.3.1.tgz",
-			"integrity": "sha512-UVqkrEW0GfDabw4C3HOrFlxKfx0eeigfRne69FxSBdHIP8Qt5Sq6Pu3RM9KmMlkygtC4pPKkj5CiPO5USnj2GA==",
-			"hasInstallScript": true,
-			"optional": true,
-			"os": [
-				"!win32"
-			],
-			"engines": {
-				"node": ">=8.6.0"
-			}
-		},
 		"node_modules/fs.realpath": {
 			"version": "1.0.0",
 			"resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
 			"integrity": "sha512-OO0pH2lK6a0hZnAdau5ItzHPI6pUlvI7jMVnxUQRtw4owF2wk8lOSabtGDCTP4Ggrg2MbGnWO9X8K1t4+fGMDw=="
 		},
-		"node_modules/generate-function": {
-			"version": "2.3.1",
-			"resolved": "https://registry.npmjs.org/generate-function/-/generate-function-2.3.1.tgz",
-			"integrity": "sha512-eeB5GfMNeevm/GRYq20ShmsaGcmI81kIX2K9XQx5miC8KdHaC6Jm0qQ8ZNeGOi7wYB8OsdxKs+Y2oVuTFuVwKQ==",
-			"optional": true,
-			"dependencies": {
-				"is-property": "^1.0.2"
-			}
-		},
-		"node_modules/generate-object-property": {
-			"version": "1.2.0",
-			"resolved": "https://registry.npmjs.org/generate-object-property/-/generate-object-property-1.2.0.tgz",
-			"integrity": "sha512-TuOwZWgJ2VAMEGJvAyPWvpqxSANF0LDpmyHauMjFYzaACvn+QTT/AZomvPCzVBV7yDN3OmwHQ5OvHaeLKre3JQ==",
-			"optional": true,
-			"dependencies": {
-				"is-property": "^1.0.0"
-			}
-		},
 		"node_modules/get-package-type": {
 			"version": "0.1.0",
 			"resolved": "https://registry.npmjs.org/get-package-type/-/get-package-type-0.1.0.tgz",
@@ -929,18 +764,6 @@
 				"node": ">=8.0.0"
 			}
 		},
-		"node_modules/get-stream": {
-			"version": "4.1.0",
-			"resolved": "https://registry.npmjs.org/get-stream/-/get-stream-4.1.0.tgz",
-			"integrity": "sha512-GMat4EJ5161kIy2HevLlr4luNjBgvmj413KaQA7jt4V8B4RDsfpHk7WQ9GVqfYyyx8OS/L66Kox+rJRNklLK7w==",
-			"optional": true,
-			"dependencies": {
-				"pump": "^3.0.0"
-			},
-			"engines": {
-				"node": ">=6"
-			}
-		},
 		"node_modules/github-slugger": {
 			"version": "2.0.0",
 			"resolved": "https://registry.npmjs.org/github-slugger/-/github-slugger-2.0.0.tgz",
@@ -1042,27 +865,6 @@
 				"node": ">= 4"
 			}
 		},
-		"node_modules/image-size": {
-			"version": "0.7.5",
-			"resolved": "https://registry.npmjs.org/image-size/-/image-size-0.7.5.tgz",
-			"integrity": "sha512-Hiyv+mXHfFEP7LzUL/llg9RwFxxY+o9N3JVLIeG5E7iFIFAalxvRU9UZthBdYDEVnzHMgjnKJPPpay5BWf1g9g==",
-			"optional": true,
-			"bin": {
-				"image-size": "bin/image-size.js"
-			},
-			"engines": {
-				"node": ">=6.9.0"
-			}
-		},
-		"node_modules/imul": {
-			"version": "1.0.1",
-			"resolved": "https://registry.npmjs.org/imul/-/imul-1.0.1.tgz",
-			"integrity": "sha512-WFAgfwPLAjU66EKt6vRdTlKj4nAgIDQzh29JonLa4Bqtl6D8JrIMvWjCnx7xEjVNmP3U0fM5o8ZObk7d0f62bA==",
-			"optional": true,
-			"engines": {
-				"node": ">=0.10.0"
-			}
-		},
 		"node_modules/indent-string": {
 			"version": "4.0.0",
 			"resolved": "https://registry.npmjs.org/indent-string/-/indent-string-4.0.0.tgz",
@@ -1085,17 +887,6 @@
 			"resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
 			"integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
 		},
-		"node_modules/innosetup": {
-			"version": "6.0.5",
-			"resolved": "https://registry.npmjs.org/innosetup/-/innosetup-6.0.5.tgz",
-			"integrity": "sha512-XRvidEN0dcxe7NrGXBjl/clfNRfmyakSDtgKaJgvZ3ciKE5ArQOVGqUJcLyPhllqHhMzYGpbUF3ZTZvtKVDP2g==",
-			"bin": {
-				"innosetup-compiler": "lib/iscc"
-			},
-			"engines": {
-				"node": ">= 0.8.0"
-			}
-		},
 		"node_modules/is-docker": {
 			"version": "2.2.1",
 			"resolved": "https://registry.npmjs.org/is-docker/-/is-docker-2.2.1.tgz",
@@ -1137,25 +928,6 @@
 				"node": ">=0.10.0"
 			}
 		},
-		"node_modules/is-my-ip-valid": {
-			"version": "1.0.1",
-			"resolved": "https://registry.npmjs.org/is-my-ip-valid/-/is-my-ip-valid-1.0.1.tgz",
-			"integrity": "sha512-jxc8cBcOWbNK2i2aTkCZP6i7wkHF1bqKFrwEHuN5Jtg5BSaZHUZQ/JTOJwoV41YvHnOaRyWWh72T/KvfNz9DJg==",
-			"optional": true
-		},
-		"node_modules/is-my-json-valid": {
-			"version": "2.20.6",
-			"resolved": "https://registry.npmjs.org/is-my-json-valid/-/is-my-json-valid-2.20.6.tgz",
-			"integrity": "sha512-1JQwulVNjx8UqkPE/bqDaxtH4PXCe/2VRh/y3p99heOV87HG4Id5/VfDswd+YiAfHcRTfDlWgISycnHuhZq1aw==",
-			"optional": true,
-			"dependencies": {
-				"generate-function": "^2.0.0",
-				"generate-object-property": "^1.1.0",
-				"is-my-ip-valid": "^1.0.0",
-				"jsonpointer": "^5.0.0",
-				"xtend": "^4.0.0"
-			}
-		},
 		"node_modules/is-number": {
 			"version": "7.0.0",
 			"resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz",
@@ -1164,21 +936,6 @@
 				"node": ">=0.12.0"
 			}
 		},
-		"node_modules/is-property": {
-			"version": "1.0.2",
-			"resolved": "https://registry.npmjs.org/is-property/-/is-property-1.0.2.tgz",
-			"integrity": "sha512-Ks/IoX00TtClbGQr4TWXemAnktAQvYB7HzcCxDGqEZU6oCmb2INHuOoKxbtR+HFkmYWBKv/dOZtGRiAjDhj92g==",
-			"optional": true
-		},
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diff --git a/package.json b/package.json
index c793a91..6b6e276 100644
--- a/package.json
+++ b/package.json
@@ -5,16 +5,12 @@
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diff --git a/util/archive.mjs b/util/archive.mjs
new file mode 100644
index 0000000..01adedc
--- /dev/null
+++ b/util/archive.mjs
@@ -0,0 +1,37 @@
+import {createWriteStream} from 'node:fs';
+import {readdir, mkdir, rm} from 'node:fs/promises';
+import {dirname} from 'node:path';
+import {pipeline} from 'node:stream/promises';
+
+import archiver from 'archiver';
+import tar from 'tar';
+
+export async function zip(target, source) {
+	await rm(target, {force: true});
+	await mkdir(dirname(target), {recursive: true});
+	const archive = archiver('zip', {
+		zlib: {
+			level: 9
+		}
+	});
+	archive.on('warning', err => {
+		archive.emit('error', err);
+	});
+	const done = pipeline(archive, createWriteStream(target));
+	archive.directory(source, false);
+	await Promise.all([archive.finalize(), done]);
+}
+
+export async function tgz(target, source) {
+	await rm(target, {force: true});
+	await mkdir(dirname(target), {recursive: true});
+	await tar.create(
+		{
+			gzip: true,
+			portable: true,
+			file: target,
+			cwd: source
+		},
+		(await readdir(source)).sort()
+	);
+}
diff --git a/util/mac.mjs b/util/mac.mjs
deleted file mode 100644
index bc619aa..0000000
--- a/util/mac.mjs
+++ /dev/null
@@ -1,22 +0,0 @@
-import {spawn} from 'node:child_process';
-
-export const isMac = process.platform === 'darwin';
-
-export async function codesign(app, identity = '-') {
-	const argv = ['codesign', '-f', '-s', identity, app];
-	await new Promise((resolve, reject) => {
-		const p = spawn(argv[0], argv.slice(1));
-		const stderr = [];
-		p.stderr.on('data', data => {
-			stderr.push(data);
-		});
-		p.on('exit', code => {
-			if (code) {
-				const err = Buffer.concat(stderr).toString('utf8').trim();
-				reject(new Error(`${argv[0]}: ${code}: ${err}`));
-				return;
-			}
-			resolve();
-		});
-	});
-}
diff --git a/util/mac/index.mjs b/util/mac/index.mjs
new file mode 100644
index 0000000..f49d16a
--- /dev/null
+++ b/util/mac/index.mjs
@@ -0,0 +1,65 @@
+import {mkdir, rm} from 'node:fs/promises';
+import {dirname} from 'node:path';
+import {spawn} from 'node:child_process';
+
+export const isMac = process.platform === 'darwin';
+
+export async function codesign(app, identity = '-') {
+	const argv = ['codesign', '-f', '-s', identity, app];
+	await new Promise((resolve, reject) => {
+		const p = spawn(argv[0], argv.slice(1));
+		const stderr = [];
+		p.stderr.on('data', data => {
+			stderr.push(data);
+		});
+		p.on('exit', code => {
+			if (code) {
+				const err = Buffer.concat(stderr).toString('utf8').trim();
+				reject(new Error(`${argv[0]}: ${code}: ${err}`));
+				return;
+			}
+			resolve();
+		});
+	});
+}
+
+export async function dmg(
+	target,
+	title,
+	icon,
+	background,
+	size,
+	iconSize,
+	contents
+) {
+	await rm(target, {force: true});
+	const {default: appdmg} = await import('appdmg');
+	await mkdir(dirname(target), {recursive: true});
+	await new Promise((resolve, reject) => {
+		const dmg = appdmg({
+			basepath: '.',
+			target,
+			specification: {
+				format: 'UDBZ',
+				title,
+				'icon-size': iconSize,
+				icon,
+				background,
+				window: {
+					size: {
+						width: size[0],
+						height: size[1]
+					}
+				},
+				contents: contents.map(([x, y, type, path]) => ({
+					x: (size[0] / 2) + x,
+					y: (size[1] / 2) + y,
+					type,
+					path
+				}))
+			}
+		});
+		dmg.on('error', reject);
+		dmg.on('finish', resolve);
+	});
+}
diff --git a/util/mac/package-lock.json b/util/mac/package-lock.json
new file mode 100644
index 0000000..96ea9c7
--- /dev/null
+++ b/util/mac/package-lock.json
@@ -0,0 +1,450 @@
+{
+	"name": "mac",
+	"lockfileVersion": 3,
+	"requires": true,
+	"packages": {
+		"": {
+			"dependencies": {
+				"appdmg": "^0.6.6"
+			}
+		},
+		"node_modules/appdmg": {
+			"version": "0.6.6",
+			"resolved": "https://registry.npmjs.org/appdmg/-/appdmg-0.6.6.tgz",
+			"integrity": "sha512-GRmFKlCG+PWbcYF4LUNonTYmy0GjguDy6Jh9WP8mpd0T6j80XIJyXBiWlD0U+MLNhqV9Nhx49Gl9GpVToulpLg==",
+			"os": [
+				"darwin"
+			],
+			"dependencies": {
+				"async": "^1.4.2",
+				"ds-store": "^0.1.5",
+				"execa": "^1.0.0",
+				"fs-temp": "^1.0.0",
+				"fs-xattr": "^0.3.0",
+				"image-size": "^0.7.4",
+				"is-my-json-valid": "^2.20.0",
+				"minimist": "^1.1.3",
+				"parse-color": "^1.0.0",
+				"path-exists": "^4.0.0",
+				"repeat-string": "^1.5.4"
+			},
+			"bin": {
+				"appdmg": "bin/appdmg.js"
+			},
+			"engines": {
+				"node": ">=8.5"
+			}
+		},
+		"node_modules/async": {
+			"version": "1.5.2",
+			"resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
+			"integrity": "sha512-nSVgobk4rv61R9PUSDtYt7mPVB2olxNR5RWJcAsH676/ef11bUZwvu7+RGYrYauVdDPcO519v68wRhXQtxsV9w=="
+		},
+		"node_modules/base32-encode": {
+			"version": "1.2.0",
+			"resolved": "https://registry.npmjs.org/base32-encode/-/base32-encode-1.2.0.tgz",
+			"integrity": "sha512-cHFU8XeRyx0GgmoWi5qHMCVRiqU6J3MHWxVgun7jggCBUpVzm1Ir7M9dYr2whjSNc3tFeXfQ/oZjQu/4u55h9A==",
+			"dependencies": {
+				"to-data-view": "^1.1.0"
+			}
+		},
+		"node_modules/bplist-creator": {
+			"version": "0.0.8",
+			"resolved": "https://registry.npmjs.org/bplist-creator/-/bplist-creator-0.0.8.tgz",
+			"integrity": "sha512-Za9JKzD6fjLC16oX2wsXfc+qBEhJBJB1YPInoAQpMLhDuj5aVOv1baGeIQSq1Fr3OCqzvsoQcSBSwGId/Ja2PA==",
+			"dependencies": {
+				"stream-buffers": "~2.2.0"
+			}
+		},
+		"node_modules/color-convert": {
+			"version": "0.5.3",
+			"resolved": "https://registry.npmjs.org/color-convert/-/color-convert-0.5.3.tgz",
+			"integrity": "sha512-RwBeO/B/vZR3dfKL1ye/vx8MHZ40ugzpyfeVG5GsiuGnrlMWe2o8wxBbLCpw9CsxV+wHuzYlCiWnybrIA0ling=="
+		},
+		"node_modules/cross-spawn": {
+			"version": "6.0.5",
+			"resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
+			"integrity": "sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==",
+			"dependencies": {
+				"nice-try": "^1.0.4",
+				"path-key": "^2.0.1",
+				"semver": "^5.5.0",
+				"shebang-command": "^1.2.0",
+				"which": "^1.2.9"
+			},
+			"engines": {
+				"node": ">=4.8"
+			}
+		},
+		"node_modules/ds-store": {
+			"version": "0.1.6",
+			"resolved": "https://registry.npmjs.org/ds-store/-/ds-store-0.1.6.tgz",
+			"integrity": "sha512-kY21M6Lz+76OS3bnCzjdsJSF7LBpLYGCVfavW8TgQD2XkcqIZ86W0y9qUDZu6fp7SIZzqosMDW2zi7zVFfv4hw==",
+			"dependencies": {
+				"bplist-creator": "~0.0.3",
+				"macos-alias": "~0.2.5",
+				"tn1150": "^0.1.0"
+			}
+		},
+		"node_modules/encode-utf8": {
+			"version": "1.0.3",
+			"resolved": "https://registry.npmjs.org/encode-utf8/-/encode-utf8-1.0.3.tgz",
+			"integrity": "sha512-ucAnuBEhUK4boH2HjVYG5Q2mQyPorvv0u/ocS+zhdw0S8AlHYY+GOFhP1Gio5z4icpP2ivFSvhtFjQi8+T9ppw=="
+		},
+		"node_modules/end-of-stream": {
+			"version": "1.4.4",
+			"resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.4.tgz",
+			"integrity": "sha512-+uw1inIHVPQoaVuHzRyXd21icM+cnt4CzD5rW+NC1wjOUSTOs+Te7FOv7AhN7vS9x/oIyhLP5PR1H+phQAHu5Q==",
+			"dependencies": {
+				"once": "^1.4.0"
+			}
+		},
+		"node_modules/execa": {
+			"version": "1.0.0",
+			"resolved": "https://registry.npmjs.org/execa/-/execa-1.0.0.tgz",
+			"integrity": "sha512-adbxcyWV46qiHyvSp50TKt05tB4tK3HcmF7/nxfAdhnox83seTDbwnaqKO4sXRy7roHAIFqJP/Rw/AuEbX61LA==",
+			"dependencies": {
+				"cross-spawn": "^6.0.0",
+				"get-stream": "^4.0.0",
+				"is-stream": "^1.1.0",
+				"npm-run-path": "^2.0.0",
+				"p-finally": "^1.0.0",
+				"signal-exit": "^3.0.0",
+				"strip-eof": "^1.0.0"
+			},
+			"engines": {
+				"node": ">=6"
+			}
+		},
+		"node_modules/fmix": {
+			"version": "0.1.0",
+			"resolved": "https://registry.npmjs.org/fmix/-/fmix-0.1.0.tgz",
+			"integrity": "sha512-Y6hyofImk9JdzU8k5INtTXX1cu8LDlePWDFU5sftm9H+zKCr5SGrVjdhkvsim646cw5zD0nADj8oHyXMZmCZ9w==",
+			"dependencies": {
+				"imul": "^1.0.0"
+			}
+		},
+		"node_modules/fs-temp": {
+			"version": "1.2.1",
+			"resolved": "https://registry.npmjs.org/fs-temp/-/fs-temp-1.2.1.tgz",
+			"integrity": "sha512-okTwLB7/Qsq82G6iN5zZJFsOfZtx2/pqrA7Hk/9fvy+c+eJS9CvgGXT2uNxwnI14BDY9L/jQPkaBgSvlKfSW9w==",
+			"dependencies": {
+				"random-path": "^0.1.0"
+			}
+		},
+		"node_modules/fs-xattr": {
+			"version": "0.3.1",
+			"resolved": "https://registry.npmjs.org/fs-xattr/-/fs-xattr-0.3.1.tgz",
+			"integrity": "sha512-UVqkrEW0GfDabw4C3HOrFlxKfx0eeigfRne69FxSBdHIP8Qt5Sq6Pu3RM9KmMlkygtC4pPKkj5CiPO5USnj2GA==",
+			"hasInstallScript": true,
+			"os": [
+				"!win32"
+			],
+			"engines": {
+				"node": ">=8.6.0"
+			}
+		},
+		"node_modules/generate-function": {
+			"version": "2.3.1",
+			"resolved": "https://registry.npmjs.org/generate-function/-/generate-function-2.3.1.tgz",
+			"integrity": "sha512-eeB5GfMNeevm/GRYq20ShmsaGcmI81kIX2K9XQx5miC8KdHaC6Jm0qQ8ZNeGOi7wYB8OsdxKs+Y2oVuTFuVwKQ==",
+			"dependencies": {
+				"is-property": "^1.0.2"
+			}
+		},
+		"node_modules/generate-object-property": {
+			"version": "1.2.0",
+			"resolved": "https://registry.npmjs.org/generate-object-property/-/generate-object-property-1.2.0.tgz",
+			"integrity": "sha512-TuOwZWgJ2VAMEGJvAyPWvpqxSANF0LDpmyHauMjFYzaACvn+QTT/AZomvPCzVBV7yDN3OmwHQ5OvHaeLKre3JQ==",
+			"dependencies": {
+				"is-property": "^1.0.0"
+			}
+		},
+		"node_modules/get-stream": {
+			"version": "4.1.0",
+			"resolved": "https://registry.npmjs.org/get-stream/-/get-stream-4.1.0.tgz",
+			"integrity": "sha512-GMat4EJ5161kIy2HevLlr4luNjBgvmj413KaQA7jt4V8B4RDsfpHk7WQ9GVqfYyyx8OS/L66Kox+rJRNklLK7w==",
+			"dependencies": {
+				"pump": "^3.0.0"
+			},
+			"engines": {
+				"node": ">=6"
+			}
+		},
+		"node_modules/image-size": {
+			"version": "0.7.5",
+			"resolved": "https://registry.npmjs.org/image-size/-/image-size-0.7.5.tgz",
+			"integrity": "sha512-Hiyv+mXHfFEP7LzUL/llg9RwFxxY+o9N3JVLIeG5E7iFIFAalxvRU9UZthBdYDEVnzHMgjnKJPPpay5BWf1g9g==",
+			"bin": {
+				"image-size": "bin/image-size.js"
+			},
+			"engines": {
+				"node": ">=6.9.0"
+			}
+		},
+		"node_modules/imul": {
+			"version": "1.0.1",
+			"resolved": "https://registry.npmjs.org/imul/-/imul-1.0.1.tgz",
+			"integrity": "sha512-WFAgfwPLAjU66EKt6vRdTlKj4nAgIDQzh29JonLa4Bqtl6D8JrIMvWjCnx7xEjVNmP3U0fM5o8ZObk7d0f62bA==",
+			"engines": {
+				"node": ">=0.10.0"
+			}
+		},
+		"node_modules/is-my-ip-valid": {
+			"version": "1.0.1",
+			"resolved": "https://registry.npmjs.org/is-my-ip-valid/-/is-my-ip-valid-1.0.1.tgz",
+			"integrity": "sha512-jxc8cBcOWbNK2i2aTkCZP6i7wkHF1bqKFrwEHuN5Jtg5BSaZHUZQ/JTOJwoV41YvHnOaRyWWh72T/KvfNz9DJg=="
+		},
+		"node_modules/is-my-json-valid": {
+			"version": "2.20.6",
+			"resolved": "https://registry.npmjs.org/is-my-json-valid/-/is-my-json-valid-2.20.6.tgz",
+			"integrity": "sha512-1JQwulVNjx8UqkPE/bqDaxtH4PXCe/2VRh/y3p99heOV87HG4Id5/VfDswd+YiAfHcRTfDlWgISycnHuhZq1aw==",
+			"dependencies": {
+				"generate-function": "^2.0.0",
+				"generate-object-property": "^1.1.0",
+				"is-my-ip-valid": "^1.0.0",
+				"jsonpointer": "^5.0.0",
+				"xtend": "^4.0.0"
+			}
+		},
+		"node_modules/is-property": {
+			"version": "1.0.2",
+			"resolved": "https://registry.npmjs.org/is-property/-/is-property-1.0.2.tgz",
+			"integrity": "sha512-Ks/IoX00TtClbGQr4TWXemAnktAQvYB7HzcCxDGqEZU6oCmb2INHuOoKxbtR+HFkmYWBKv/dOZtGRiAjDhj92g=="
+		},
+		"node_modules/is-stream": {
+			"version": "1.1.0",
+			"resolved": "https://registry.npmjs.org/is-stream/-/is-stream-1.1.0.tgz",
+			"integrity": "sha512-uQPm8kcs47jx38atAcWTVxyltQYoPT68y9aWYdV6yWXSyW8mzSat0TL6CiWdZeCdF3KrAvpVtnHbTv4RN+rqdQ==",
+			"engines": {
+				"node": ">=0.10.0"
+			}
+		},
+		"node_modules/isexe": {
+			"version": "2.0.0",
+			"resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
+			"integrity": "sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw=="
+		},
+		"node_modules/jsonpointer": {
+			"version": "5.0.1",
+			"resolved": "https://registry.npmjs.org/jsonpointer/-/jsonpointer-5.0.1.tgz",
+			"integrity": "sha512-p/nXbhSEcu3pZRdkW1OfJhpsVtW1gd4Wa1fnQc9YLiTfAjn0312eMKimbdIQzuZl9aa9xUGaRlP9T/CJE/ditQ==",
+			"engines": {
+				"node": ">=0.10.0"
+			}
+		},
+		"node_modules/macos-alias": {
+			"version": "0.2.11",
+			"resolved": "https://registry.npmjs.org/macos-alias/-/macos-alias-0.2.11.tgz",
+			"integrity": "sha512-zIUs3+qpml+w3wiRuADutd7XIO8UABqksot10Utl/tji4UxZzLG4fWDC+yJZoO8/Ehg5RqsvSRE/6TS5AEOeWw==",
+			"hasInstallScript": true,
+			"os": [
+				"darwin"
+			],
+			"dependencies": {
+				"nan": "^2.4.0"
+			}
+		},
+		"node_modules/minimist": {
+			"version": "1.2.8",
+			"resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.8.tgz",
+			"integrity": "sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==",
+			"funding": {
+				"url": "https://github.com/sponsors/ljharb"
+			}
+		},
+		"node_modules/murmur-32": {
+			"version": "0.2.0",
+			"resolved": "https://registry.npmjs.org/murmur-32/-/murmur-32-0.2.0.tgz",
+			"integrity": "sha512-ZkcWZudylwF+ir3Ld1n7gL6bI2mQAzXvSobPwVtu8aYi2sbXeipeSkdcanRLzIofLcM5F53lGaKm2dk7orBi7Q==",
+			"dependencies": {
+				"encode-utf8": "^1.0.3",
+				"fmix": "^0.1.0",
+				"imul": "^1.0.0"
+			}
+		},
+		"node_modules/nan": {
+			"version": "2.18.0",
+			"resolved": "https://registry.npmjs.org/nan/-/nan-2.18.0.tgz",
+			"integrity": "sha512-W7tfG7vMOGtD30sHoZSSc/JVYiyDPEyQVso/Zz+/uQd0B0L46gtC+pHha5FFMRpil6fm/AoEcRWyOVi4+E/f8w=="
+		},
+		"node_modules/nice-try": {
+			"version": "1.0.5",
+			"resolved": "https://registry.npmjs.org/nice-try/-/nice-try-1.0.5.tgz",
+			"integrity": "sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ=="
+		},
+		"node_modules/npm-run-path": {
+			"version": "2.0.2",
+			"resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-2.0.2.tgz",
+			"integrity": "sha512-lJxZYlT4DW/bRUtFh1MQIWqmLwQfAxnqWG4HhEdjMlkrJYnJn0Jrr2u3mgxqaWsdiBc76TYkTG/mhrnYTuzfHw==",
+			"dependencies": {
+				"path-key": "^2.0.0"
+			},
+			"engines": {
+				"node": ">=4"
+			}
+		},
+		"node_modules/once": {
+			"version": "1.4.0",
+			"resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
+			"integrity": "sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==",
+			"dependencies": {
+				"wrappy": "1"
+			}
+		},
+		"node_modules/p-finally": {
+			"version": "1.0.0",
+			"resolved": "https://registry.npmjs.org/p-finally/-/p-finally-1.0.0.tgz",
+			"integrity": "sha512-LICb2p9CB7FS+0eR1oqWnHhp0FljGLZCWBE9aix0Uye9W8LTQPwMTYVGWQWIw9RdQiDg4+epXQODwIYJtSJaow==",
+			"engines": {
+				"node": ">=4"
+			}
+		},
+		"node_modules/parse-color": {
+			"version": "1.0.0",
+			"resolved": "https://registry.npmjs.org/parse-color/-/parse-color-1.0.0.tgz",
+			"integrity": "sha512-fuDHYgFHJGbpGMgw9skY/bj3HL/Jrn4l/5rSspy00DoT4RyLnDcRvPxdZ+r6OFwIsgAuhDh4I09tAId4mI12bw==",
+			"dependencies": {
+				"color-convert": "~0.5.0"
+			}
+		},
+		"node_modules/path-exists": {
+			"version": "4.0.0",
+			"resolved": "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz",
+			"integrity": "sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==",
+			"engines": {
+				"node": ">=8"
+			}
+		},
+		"node_modules/path-key": {
+			"version": "2.0.1",
+			"resolved": "https://registry.npmjs.org/path-key/-/path-key-2.0.1.tgz",
+			"integrity": "sha512-fEHGKCSmUSDPv4uoj8AlD+joPlq3peND+HRYyxFz4KPw4z926S/b8rIuFs2FYJg3BwsxJf6A9/3eIdLaYC+9Dw==",
+			"engines": {
+				"node": ">=4"
+			}
+		},
+		"node_modules/pump": {
+			"version": "3.0.0",
+			"resolved": "https://registry.npmjs.org/pump/-/pump-3.0.0.tgz",
+			"integrity": "sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==",
+			"dependencies": {
+				"end-of-stream": "^1.1.0",
+				"once": "^1.3.1"
+			}
+		},
+		"node_modules/random-path": {
+			"version": "0.1.2",
+			"resolved": "https://registry.npmjs.org/random-path/-/random-path-0.1.2.tgz",
+			"integrity": "sha512-4jY0yoEaQ5v9StCl5kZbNIQlg1QheIDBrdkDn53EynpPb9FgO6//p3X/tgMnrC45XN6QZCzU1Xz/+pSSsJBpRw==",
+			"dependencies": {
+				"base32-encode": "^0.1.0 || ^1.0.0",
+				"murmur-32": "^0.1.0 || ^0.2.0"
+			}
+		},
+		"node_modules/repeat-string": {
+			"version": "1.6.1",
+			"resolved": "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz",
+			"integrity": "sha512-PV0dzCYDNfRi1jCDbJzpW7jNNDRuCOG/jI5ctQcGKt/clZD+YcPS3yIlWuTJMmESC8aevCFmWJy5wjAFgNqN6w==",
+			"engines": {
+				"node": ">=0.10"
+			}
+		},
+		"node_modules/semver": {
+			"version": "5.7.2",
+			"resolved": "https://registry.npmjs.org/semver/-/semver-5.7.2.tgz",
+			"integrity": "sha512-cBznnQ9KjJqU67B52RMC65CMarK2600WFnbkcaiwWq3xy/5haFJlshgnpjovMVJ+Hff49d8GEn0b87C5pDQ10g==",
+			"bin": {
+				"semver": "bin/semver"
+			}
+		},
+		"node_modules/shebang-command": {
+			"version": "1.2.0",
+			"resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
+			"integrity": "sha512-EV3L1+UQWGor21OmnvojK36mhg+TyIKDh3iFBKBohr5xeXIhNBcx8oWdgkTEEQ+BEFFYdLRuqMfd5L84N1V5Vg==",
+			"dependencies": {
+				"shebang-regex": "^1.0.0"
+			},
+			"engines": {
+				"node": ">=0.10.0"
+			}
+		},
+		"node_modules/shebang-regex": {
+			"version": "1.0.0",
+			"resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-1.0.0.tgz",
+			"integrity": "sha512-wpoSFAxys6b2a2wHZ1XpDSgD7N9iVjg29Ph9uV/uaP9Ex/KXlkTZTeddxDPSYQpgvzKLGJke2UU0AzoGCjNIvQ==",
+			"engines": {
+				"node": ">=0.10.0"
+			}
+		},
+		"node_modules/signal-exit": {
+			"version": "3.0.7",
+			"resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.7.tgz",
+			"integrity": "sha512-wnD2ZE+l+SPC/uoS0vXeE9L1+0wuaMqKlfz9AMUo38JsyLSBWSFcHR1Rri62LZc12vLr1gb3jl7iwQhgwpAbGQ=="
+		},
+		"node_modules/stream-buffers": {
+			"version": "2.2.0",
+			"resolved": "https://registry.npmjs.org/stream-buffers/-/stream-buffers-2.2.0.tgz",
+			"integrity": "sha512-uyQK/mx5QjHun80FLJTfaWE7JtwfRMKBLkMne6udYOmvH0CawotVa7TfgYHzAnpphn4+TweIx1QKMnRIbipmUg==",
+			"engines": {
+				"node": ">= 0.10.0"
+			}
+		},
+		"node_modules/strip-eof": {
+			"version": "1.0.0",
+			"resolved": "https://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz",
+			"integrity": "sha512-7FCwGGmx8mD5xQd3RPUvnSpUXHM3BWuzjtpD4TXsfcZ9EL4azvVVUscFYwD9nx8Kh+uCBC00XBtAykoMHwTh8Q==",
+			"engines": {
+				"node": ">=0.10.0"
+			}
+		},
+		"node_modules/tn1150": {
+			"version": "0.1.0",
+			"resolved": "https://registry.npmjs.org/tn1150/-/tn1150-0.1.0.tgz",
+			"integrity": "sha512-DbplOfQFkqG5IHcDyyrs/lkvSr3mPUVsFf/RbDppOshs22yTPnSJWEe6FkYd1txAwU/zcnR905ar2fi4kwF29w==",
+			"dependencies": {
+				"unorm": "^1.4.1"
+			},
+			"engines": {
+				"node": ">=0.12"
+			}
+		},
+		"node_modules/to-data-view": {
+			"version": "1.1.0",
+			"resolved": "https://registry.npmjs.org/to-data-view/-/to-data-view-1.1.0.tgz",
+			"integrity": "sha512-1eAdufMg6mwgmlojAx3QeMnzB/BTVp7Tbndi3U7ftcT2zCZadjxkkmLmd97zmaxWi+sgGcgWrokmpEoy0Dn0vQ=="
+		},
+		"node_modules/unorm": {
+			"version": "1.6.0",
+			"resolved": "https://registry.npmjs.org/unorm/-/unorm-1.6.0.tgz",
+			"integrity": "sha512-b2/KCUlYZUeA7JFUuRJZPUtr4gZvBh7tavtv4fvk4+KV9pfGiR6CQAQAWl49ZpR3ts2dk4FYkP7EIgDJoiOLDA==",
+			"engines": {
+				"node": ">= 0.4.0"
+			}
+		},
+		"node_modules/which": {
+			"version": "1.3.1",
+			"resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+			"integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+			"dependencies": {
+				"isexe": "^2.0.0"
+			},
+			"bin": {
+				"which": "bin/which"
+			}
+		},
+		"node_modules/wrappy": {
+			"version": "1.0.2",
+			"resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+			"integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="
+		},
+		"node_modules/xtend": {
+			"version": "4.0.2",
+			"resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+			"integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
+			"engines": {
+				"node": ">=0.4"
+			}
+		}
+	}
+}
diff --git a/util/mac/package.json b/util/mac/package.json
new file mode 100644
index 0000000..1b55e6e
--- /dev/null
+++ b/util/mac/package.json
@@ -0,0 +1,6 @@
+{
+	"private": true,
+	"dependencies": {
+		"appdmg": "^0.6.6"
+	}
+}
diff --git a/util/dist.mjs b/util/windows/index.mjs
similarity index 65%
rename from util/dist.mjs
rename to util/windows/index.mjs
index 0ac4978..3b94816 100644
--- a/util/dist.mjs
+++ b/util/windows/index.mjs
@@ -1,83 +1,9 @@
 import {createRequire} from 'node:module';
-import {createWriteStream} from 'node:fs';
-import {readdir, mkdir, rm} from 'node:fs/promises';
+import {rm} from 'node:fs/promises';
 import {basename, dirname} from 'node:path';
-import {pipeline} from 'node:stream/promises';
 import {spawn} from 'node:child_process';
 
-import archiver from 'archiver';
-import tar from 'tar';
-
-export async function makeZip(target, source) {
-	await rm(target, {force: true});
-	await mkdir(dirname(target), {recursive: true});
-	const archive = archiver('zip', {
-		zlib: {
-			level: 9
-		}
-	});
-	archive.on('warning', err => {
-		archive.emit('error', err);
-	});
-	const done = pipeline(archive, createWriteStream(target));
-	archive.directory(source, false);
-	await Promise.all([archive.finalize(), done]);
-}
-
-export async function makeTgz(target, source) {
-	await rm(target, {force: true});
-	await mkdir(dirname(target), {recursive: true});
-	await tar.create(
-		{
-			gzip: true,
-			portable: true,
-			file: target,
-			cwd: source
-		},
-		(await readdir(source)).sort()
-	);
-}
-
-export async function makeDmg(
-	target,
-	title,
-	icon,
-	background,
-	size,
-	iconSize,
-	contents
-) {
-	await rm(target, {force: true});
-	const {default: appdmg} = await import('appdmg');
-	await mkdir(dirname(target), {recursive: true});
-	await new Promise((resolve, reject) => {
-		const dmg = appdmg({
-			basepath: '.',
-			target,
-			specification: {
-				format: 'UDBZ',
-				title,
-				'icon-size': iconSize,
-				icon,
-				background,
-				window: {
-					size: {
-						width: size[0],
-						height: size[1]
-					}
-				},
-				contents: contents.map(([x, y, type, path]) => ({
-					x: (size[0] / 2) + x,
-					y: (size[1] / 2) + y,
-					type,
-					path
-				}))
-			}
-		});
-		dmg.on('error', reject);
-		dmg.on('finish', resolve);
-	});
-}
+export const isWindows = /^win/.test(process.platform);
 
 function createIss(config) {
 	return '\ufeff' + Object.entries(config).map(([s, p]) => {
@@ -88,7 +14,7 @@ function createIss(config) {
 	}).join('\n');
 }
 
-export async function makeExe(
+export async function exe(
 	target,
 	arch,
 	id,
@@ -182,7 +108,7 @@ export async function makeExe(
 		}))
 	});
 	const require = createRequire(import.meta.url);
-	const argv = /^win/.test(process.platform) ? [] : ['wine'];
+	const argv = isWindows ? [] : ['wine'];
 	const iscc = require.resolve('innosetup/bin/ISCC.exe');
 	argv.push(iscc);
 	argv.push('/q');
diff --git a/util/windows/package-lock.json b/util/windows/package-lock.json
new file mode 100644
index 0000000..0a1c0e0
--- /dev/null
+++ b/util/windows/package-lock.json
@@ -0,0 +1,23 @@
+{
+	"name": "windows",
+	"lockfileVersion": 3,
+	"requires": true,
+	"packages": {
+		"": {
+			"dependencies": {
+				"innosetup": "^6.0.5"
+			}
+		},
+		"node_modules/innosetup": {
+			"version": "6.0.5",
+			"resolved": "https://registry.npmjs.org/innosetup/-/innosetup-6.0.5.tgz",
+			"integrity": "sha512-XRvidEN0dcxe7NrGXBjl/clfNRfmyakSDtgKaJgvZ3ciKE5ArQOVGqUJcLyPhllqHhMzYGpbUF3ZTZvtKVDP2g==",
+			"bin": {
+				"innosetup-compiler": "lib/iscc"
+			},
+			"engines": {
+				"node": ">= 0.8.0"
+			}
+		}
+	}
+}
diff --git a/util/windows/package.json b/util/windows/package.json
new file mode 100644
index 0000000..e65a8db
--- /dev/null
+++ b/util/windows/package.json
@@ -0,0 +1,6 @@
+{
+	"private": true,
+	"dependencies": {
+		"innosetup": "^6.0.5"
+	}
+}