diff --git a/src/commands/compile.ts b/src/commands/compile.ts
index 2baae5a..f47b89c 100644
--- a/src/commands/compile.ts
+++ b/src/commands/compile.ts
@@ -56,8 +56,7 @@ the package.json file under the \`publicodes\` key. For example:
   static override flags = {
     output: Flags.string({
       char: 'o',
-      default: 'build',
-      summary: 'Specify the output directory.',
+      summary: 'Specify the output directory. Default is "./build".',
     }),
   }
 
@@ -67,7 +66,8 @@ the package.json file under the \`publicodes\` key. For example:
     p.intro(chalk.bgHex('#2975d1')(' publicodes compile '))
     const filesToCompile: string[] =
       argv.length === 0
-        ? this.config.pjson?.publicodes?.files ?? ['src/']
+        ? // TODO: test with production package
+          this.config.pjson?.publicodes?.files ?? ['src/']
         : argv
 
     const outputDir = path.resolve(
@@ -93,9 +93,14 @@ the package.json file under the \`publicodes\` key. For example:
   async generateDTS(engine: Engine, outputDir: string): Promise<void> {
     return runWithSpinner('Generating types', 'Types generated.', () => {
       const ruleTypes = resolveRuleTypes(engine)
-      const serializedRuleTypes = Object.entries(ruleTypes)
+      const typesEntries = Object.entries(ruleTypes)
+      const serializedRuleTypes = typesEntries
         .map(([name, type]) => `  "${name}": ${serializeType(type)}`)
         .join(',\n')
+      const serializedQuestionsRuleTypes = typesEntries
+        .filter(([name]) => engine.getRule(name).rawNode.question)
+        .map(([name, type]) => `  "${name}": ${serializeJSType(type)}`)
+        .join(',\n')
 
       const dts = `/** THIS FILE WAS GENERATED BY ${this.config.pjson.name} (v${this.config.pjson.version}). PLEASE, DO NOT EDIT IT MANUALLY. */
 
@@ -119,15 +124,33 @@ export type PString = \`'\${string}'\`
 
 /**
  * Corresponding Publicodes situation with types inferred for each rule.
+ *  
+ *  @note
+ *  This represents the situation as needed by the 'setSituation' method of the
+ *  {@link Engine} class with raw values (i.e. string constants are enclosed in
+ *  "''" and boolean values are 'oui' or 'non').
  */
-export type TypedSituation = {
+export type Situation = Partial<{
 ${serializedRuleTypes}
-}
+}>
+
+/**
+ * Subset of the {@link Situation} with only the rules that are questions
+ * (i.e. input rules).
+ *
+ * @note
+ * This represents the input rules expected to be provided by the user.
+ * Therefore the values are in their JavaScript form (i.e. string constants are
+ * enclosed in '' and boolean values are 'true' or 'false').
+ */
+export type Questions = Partial<{
+${serializedQuestionsRuleTypes}
+}>
 
 /**
  * All rule names available in the model.
  */
-export type RuleName = keyof TypedSituation
+export type RuleName = keyof Situation
 
 declare let rules: Record<RuleName, Rule>
 
@@ -237,3 +260,24 @@ function serializeType(type: RuleType): string {
     }
   }
 }
+
+function serializeJSType(type: RuleType): string {
+  const nullable = type.isNullable ? ' | null' : ''
+  switch (type.type) {
+    case 'string': {
+      return `string${nullable}`
+    }
+    case 'number': {
+      return `number${nullable}`
+    }
+    case 'boolean': {
+      return `boolean${nullable}`
+    }
+    case 'date': {
+      return `string${nullable}`
+    }
+    case 'enum': {
+      return type.options.map((option) => `"${option}"`).join(' | ') + nullable
+    }
+  }
+}
diff --git a/src/commands/init.ts b/src/commands/init.ts
index af7e368..2538203 100644
--- a/src/commands/init.ts
+++ b/src/commands/init.ts
@@ -1,4 +1,4 @@
-import fs from 'fs'
+import fs, { appendFileSync } from 'fs'
 import path from 'path'
 import { execSync } from 'node:child_process'
 import { Command, Flags } from '@oclif/core'
@@ -141,6 +141,10 @@ installation.`,
     pkgJSON.description = pkgJSON.description ?? basePackageJson.description
     pkgJSON.author = pkgJSON.author ?? basePackageJson.author
     pkgJSON.files = basePackageJson.files!.concat(pkgJSON.files ?? [])
+    pkgJSON.scripts = {
+      ...pkgJSON.scripts,
+      ...basePackageJson.scripts,
+    }
     pkgJSON.peerDependencies = {
       ...pkgJSON.peerDependencies,
       ...basePackageJson.peerDependencies,
@@ -150,10 +154,6 @@ installation.`,
       // NOTE: to test with the packaged version
       '@publicodes/tools': `^${this.config.pjson.version}`,
     }
-    pkgJSON.scripts = {
-      ...pkgJSON.scripts,
-      ...basePackageJson.scripts,
-    }
     if (pkgJSON.name.startsWith('@')) {
       pkgJSON.publishConfig = { access: 'public' }
     }
@@ -269,7 +269,7 @@ function setupTests(pkgJSON: PackageJson) {
   }
   pkgJSON.scripts = {
     ...pkgJSON.scripts,
-    test: 'vitest --globals',
+    test: 'vitest run --globals',
   }
   return pkgJSON
 }
@@ -343,6 +343,11 @@ async function generateBaseFiles(
         )
       }
 
+      fs.appendFileSync(
+        '.gitattributes',
+        '*.publicodes linguist-language=YAML\n',
+      )
+
       if (!fs.existsSync('test')) {
         fs.mkdirSync('test')
       }
diff --git a/src/utils/pjson.ts b/src/utils/pjson.ts
index d2cf1e3..c6f3d59 100644
--- a/src/utils/pjson.ts
+++ b/src/utils/pjson.ts
@@ -30,6 +30,10 @@ export type PackageJson = {
   publishConfig?: {
     access: string
   }
+  publicodes?: {
+    files?: string[]
+    output?: string
+  }
 }
 
 export const basePackageJson: PackageJson = {