diff --git a/.changeset/tidy-friends-build.md b/.changeset/tidy-friends-build.md
new file mode 100644
index 000000000..a845151cc
--- /dev/null
+++ b/.changeset/tidy-friends-build.md
@@ -0,0 +1,2 @@
+---
+---
diff --git a/packages/align-deps/src/types.ts b/packages/align-deps/src/types.ts
index 45948e085..029e78711 100644
--- a/packages/align-deps/src/types.ts
+++ b/packages/align-deps/src/types.ts
@@ -27,11 +27,11 @@ export type DiffMode = "strict" | "allow-subset";
 
 export type Options = {
   presets: string[];
-  loose: boolean;
-  migrateConfig: boolean;
-  noUnmanaged: boolean;
-  verbose: boolean;
-  write: boolean;
+  loose?: boolean;
+  migrateConfig?: boolean;
+  noUnmanaged?: boolean;
+  verbose?: boolean;
+  write?: boolean;
   diffMode?: DiffMode;
   excludePackages?: string[];
   requirements?: string[];
@@ -41,13 +41,13 @@ export type Args = Pick<Options, "loose" | "verbose" | "write"> & {
   "diff-mode"?: string;
   "exclude-packages"?: string | number;
   "export-catalogs"?: string;
-  "migrate-config": boolean;
-  "no-unmanaged": boolean;
+  "migrate-config"?: boolean;
+  "no-unmanaged"?: boolean;
   "set-version"?: string | number;
   init?: string;
   packages?: (string | number)[];
-  presets?: string | number;
-  requirements?: string | number;
+  presets?: string | number | string[];
+  requirements?: string | number | string[];
 };
 
 export type DependencyType = "direct" | "development" | "peer";
diff --git a/scripts/align-deps-preset.cjs b/scripts/align-deps-preset.cjs
index 23f66f3c7..0fcef1455 100644
--- a/scripts/align-deps-preset.cjs
+++ b/scripts/align-deps-preset.cjs
@@ -45,40 +45,49 @@ function getAvailableProfiles() {
 }
 
 function makeTypesEntries() {
-  return Object.entries(dependencies).reduce((types, [name, version]) => {
+  /** @type {Record<string, { name: string; version: string; devOnly: true; }>} */
+  const types = {};
+  for (const [name, version] of Object.entries(dependencies)) {
     const pkgName = `@types/${name}`;
     types[pkgName] = { name: pkgName, version, devOnly: true };
-    return types;
-  }, {});
+  }
+  return types;
 }
 
-const profile = {
-  ...makeTypesEntries(),
-  esbuild: {
-    name: "esbuild",
-    version: "^0.27.1",
-    devOnly: true,
-  },
-  "find-up": {
-    name: "find-up",
-    version: "^5.0.0",
-  },
-  "oxc-resolver": {
-    name: "oxc-resolver",
-    version: "^11.0.0",
-    devOnly: true,
-  },
-  semver: {
-    name: "semver",
-    version: "^7.0.0",
-  },
-  yargs: {
-    name: "yargs",
-    version: dependencies.yargs,
-  },
-};
+function makePreset() {
+  const profile = {
+    ...makeTypesEntries(),
+    esbuild: {
+      name: "esbuild",
+      version: "^0.27.1",
+      devOnly: true,
+    },
+    "find-up": {
+      name: "find-up",
+      version: "^5.0.0",
+    },
+    "oxc-resolver": {
+      name: "oxc-resolver",
+      version: "^11.0.0",
+      devOnly: true,
+    },
+    semver: {
+      name: "semver",
+      version: "^7.0.0",
+    },
+    yargs: {
+      name: "yargs",
+      version: dependencies.yargs,
+    },
+  };
+
+  /** @type {Record<string, typeof profile>} */
+  const preset = {};
+  for (const key of getAvailableProfiles()) {
+    preset[key] = profile;
+  }
 
-module.exports = getAvailableProfiles().reduce((preset, key) => {
-  preset[key] = profile;
   return preset;
-}, {});
+}
+
+module.exports = makePreset();
diff --git a/scripts/dependencies.config.js b/scripts/dependencies.config.js
index b7ac2b2af..af4b2ef6f 100644
--- a/scripts/dependencies.config.js
+++ b/scripts/dependencies.config.js
@@ -3,6 +3,14 @@
 import * as fs from "node:fs";
 import * as path from "node:path";
 
+/**
+ * @typedef {{
+ *   scripts?: Record<string, string>;
+ *   dependencies?: Record<string, string>;
+ *   jest?: unknown;
+ * }} Manifest;
+ */
+
 /**
  * @returns {true}
  */
@@ -10,6 +18,17 @@ function always() {
   return true;
 }
 
+/**
+ * @template {object} T
+ * @template {keyof T} K
+ * @param {T} obj
+ * @param {K} property
+ * @returns {obj is T & Pick<Required<T>, K>}
+ */
+function hasOwn(obj, property) {
+  return Object.hasOwn(obj, property);
+}
+
 /**
  * @param {string} filename
  * @returns {(cwd: string) => boolean}
@@ -20,25 +39,24 @@ function lookForFile(filename) {
 
 /**
  * @param {string} cwd
- * @param {Record<string, unknown>} manifest
+ * @param {Manifest} manifest
  * @returns {boolean}
  */
 function needsJest(cwd, manifest) {
   return (
-    Object.hasOwn(manifest, "jest") ||
-    fs.existsSync(path.join(cwd, "jest.config.js"))
+    hasOwn(manifest, "jest") || fs.existsSync(path.join(cwd, "jest.config.js"))
   );
 }
 
 /**
  * @param {string} _cwd
- * @param {Record<string, Record<string, string>>} manifest
+ * @param {Manifest} manifest
  * @returns {boolean}
  */
 function needsLint(_cwd, manifest) {
   return (
-    Object.hasOwn(manifest, "scripts") &&
-    Object.hasOwn(manifest["scripts"], "lint") &&
+    hasOwn(manifest, "scripts") &&
+    hasOwn(manifest["scripts"], "lint") &&
     manifest["scripts"]["lint"].includes("rnx-kit-scripts lint")
   );
 }
@@ -54,7 +72,11 @@ const COMMON_DEPENDENCIES = /** @type {const} */ ([
   ["typescript", needsTypeScript],
 ]);
 
+/**
+ * @param {{ cwd: string; manifest: Manifest; }}
+ */
 export default function ({ cwd, manifest }) {
+  /** @type {Pick<Required<Manifest>, "dependencies"> | undefined} */
   let extensions = undefined;
 
   for (const [pkg, test] of COMMON_DEPENDENCIES) {
diff --git a/scripts/rnx-align-deps.js b/scripts/rnx-align-deps.js
index 199fdd567..684842795 100755
--- a/scripts/rnx-align-deps.js
+++ b/scripts/rnx-align-deps.js
@@ -1,7 +1,7 @@
 #!/usr/bin/env node
 
 import { URL, fileURLToPath } from "node:url";
-// Directly import align-deps to avoid circular dependency
+// @ts-ignore Directly import align-deps to avoid circular dependency
 import { cli } from "../packages/align-deps/lib/index.js";
 
 cli({
diff --git a/scripts/tsconfig.json b/scripts/tsconfig.json
index d44d6e5dc..41b5875b5 100644
--- a/scripts/tsconfig.json
+++ b/scripts/tsconfig.json
@@ -3,5 +3,5 @@
   "compilerOptions": {
     "noEmit": true
   },
-  "include": ["src", "*.ts"]
+  "include": ["*.cjs", "*.js", "*.ts", "src"]
 }