diff --git a/src/models/src/machine.ts b/src/models/src/machine.ts
new file mode 100644
index 0000000..bd1d59e
--- /dev/null
+++ b/src/models/src/machine.ts
@@ -0,0 +1,113 @@
+import { ToJson } from '@/types.ts'
+import { Group } from '@models/group.ts'
+import { Ressource } from '@models/ressource.ts'
+import { Ref } from '@/src/models/utils/ref.ts'
+
+export class Machine extends Ressource {
+	static fromJSON(
+		json: ToJson<Machine>,
+	): Machine {
+		const url = new URL(json.url)
+		const avatar = new URL(json.avatar)
+		const groups = json.groups.map((group) => Ref.fromString<Group>(group))
+
+		return new Machine({ ...json, url, avatar, groups })
+	}
+
+	static create(
+		{ tags, url, status, avatar, groups, ...props }:
+			& Pick<Machine, 'tags' | 'url' | 'status' | 'avatar' | 'groups'>
+			& Pick<Ressource, 'name' | 'uuid' | 'createdAt' | 'updatedAt'>,
+	): Machine {
+		return new Machine({ ...props, tags, url, status, avatar, groups })
+	}
+
+	#tags: readonly string[]
+	#url: URL
+	#status:
+		| 'ready'
+		| 'busy'
+		| 'unavailable'
+		| 'discontinued'
+		| 'error'
+		| 'unknown'
+	#avatar: URL
+	#groups: readonly Ref<Group>[]
+
+	private constructor(
+		{ tags, url, status, avatar, groups, ...props }:
+			& Pick<Machine, 'tags' | 'url' | 'status' | 'avatar' | 'groups'>
+			& Pick<Ressource, 'name' | 'uuid' | 'createdAt' | 'updatedAt'>,
+	) {
+		super(props)
+
+		this.#tags = Object.freeze(tags)
+		this.#url = new URL(url)
+		if (!['working', 'pending', 'ready', 'unavailable'].includes(status)) {
+			throw new TypeError(
+				`status is "${status}" but ('ready' | 'busy' | 'unavailable' | 'discontinued' | 'error' | 'unknown') is required`,
+			)
+		}
+		this.#status = status
+		this.#avatar = new URL(avatar)
+		this.#groups = Object.freeze(groups)
+	}
+
+	get type(): 'machine' {
+		return 'machine'
+	}
+	get tags() {
+		return this.#tags.slice()
+	}
+	get url() {
+		return new URL(this.#url)
+	}
+	get status() {
+		return this.#status
+	}
+	get avatar() {
+		return new URL(this.#avatar)
+	}
+	get groups() {
+		return this.#groups
+	}
+
+	update(
+		props: Partial<Omit<Machine, 'type' | 'uuid' | 'createdAt'>>,
+	): Machine {
+		const { updatedAt } = super.update(props)
+		const machine = new Machine({ ...this, ...props, updatedAt })
+		return machine
+	}
+
+	toJSON() {
+		return {
+			...super.toJSON(),
+			type: this.type,
+			tags: this.tags.slice(),
+			url: this.url.toJSON(),
+			status: this.status,
+			avatar: this.avatar.toJSON(),
+			groups: Object.freeze(this.groups.map((group) => group.toJSON())),
+		} as const
+	}
+
+	toString(): string {
+		return `Machine (${JSON.stringify(this)})`
+	}
+}
+
+export interface Machine extends Ressource {
+	type: 'machine'
+	tags: string[]
+	url: URL
+	status:
+		| 'ready'
+		| 'busy'
+		| 'unavailable'
+		| 'discontinued'
+		| 'error'
+		| 'unknown'
+	avatar: URL
+	groups: readonly Ref<Group>[]
+}