diff --git a/core/app/Channels/ChannelDriver.php b/core/app/Channels/ChannelDriver.php
new file mode 100644
index 0000000..6403c93
--- /dev/null
+++ b/core/app/Channels/ChannelDriver.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Channels;
+
+use App\Enums\Presence;
+use App\Models\Delivery;
+use App\Models\Event;
+use App\Models\User;
+
+interface ChannelDriver
+{
+    /** Пользователь сейчас доступен через этот канал? */
+    public function presence(User $user, array $config): Presence;
+
+    /** Доставить напоминание. Не бросает: ошибки — в DeliveryOutcome::failed. */
+    public function deliver(Event $event, User $user, array $config, Delivery $delivery): DeliveryOutcome;
+
+    /** Событие закрыто: убрать кнопки и т.п. Best effort, никогда не бросает. */
+    public function onDone(Event $event, Delivery $delivery): void;
+}
diff --git a/core/app/Channels/ChannelRegistry.php b/core/app/Channels/ChannelRegistry.php
new file mode 100644
index 0000000..1b9b5cb
--- /dev/null
+++ b/core/app/Channels/ChannelRegistry.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Channels;
+
+use App\Enums\ChannelType;
+use Illuminate\Contracts\Container\Container;
+
+final class ChannelRegistry
+{
+    public function __construct(private readonly Container $container) {}
+
+    public function for(ChannelType $type): ChannelDriver
+    {
+        return match ($type) {
+            ChannelType::Web => $this->container->make(WebChannel::class),
+            ChannelType::Webhook => $this->container->make(WebhookChannel::class),
+            ChannelType::Telegram => $this->container->make(TelegramChannel::class),
+        };
+    }
+}
diff --git a/core/app/Channels/DeliveryOutcome.php b/core/app/Channels/DeliveryOutcome.php
new file mode 100644
index 0000000..9074141
--- /dev/null
+++ b/core/app/Channels/DeliveryOutcome.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Channels;
+
+final class DeliveryOutcome
+{
+    private function __construct(
+        public readonly bool $ok,
+        public readonly ?string $error,
+        /** @var array<string,mixed> служебное канала, ляжет в deliveries.meta */
+        public readonly array $meta,
+    ) {}
+
+    public static function ok(array $meta = []): self
+    {
+        return new self(true, null, $meta);
+    }
+
+    public static function failed(string $error): self
+    {
+        return new self(false, $error, []);
+    }
+}
diff --git a/core/app/Channels/TelegramChannel.php b/core/app/Channels/TelegramChannel.php
new file mode 100644
index 0000000..d141929
--- /dev/null
+++ b/core/app/Channels/TelegramChannel.php
@@ -0,0 +1,100 @@
+<?php
+
+namespace App\Channels;
+
+use App\Enums\Presence;
+use App\Models\Delivery;
+use App\Models\Event;
+use App\Models\User;
+use Illuminate\Http\Client\Response;
+use Illuminate\Support\Facades\Cache;
+use Illuminate\Support\Facades\Http;
+use Throwable;
+
+final class TelegramChannel implements ChannelDriver
+{
+    public function __construct(
+        private readonly string $botToken,
+        private readonly int $seenTtl,
+    ) {}
+
+    public function presence(User $user, array $config): Presence
+    {
+        // Бот не видит онлайн-статус: present только если недавно жал кнопку или писал.
+        return Cache::has($this->seenKey($config['chat_id'])) ? Presence::Present : Presence::Unknown;
+    }
+
+    public function deliver(Event $event, User $user, array $config, Delivery $delivery): DeliveryOutcome
+    {
+        $text = $event->payload['title'];
+        if (! empty($event->payload['subtitle'])) {
+            $text .= "\n".$event->payload['subtitle'];
+        }
+
+        try {
+            $response = $this->call('sendMessage', [
+                'chat_id' => $config['chat_id'],
+                'text' => $text,
+                'reply_markup' => ['inline_keyboard' => [[
+                    ['text' => 'Помню', 'callback_data' => 'ack:'.$delivery->action_token],
+                    ['text' => $event->payload['done_label'] ?? 'Сделано', 'callback_data' => 'done:'.$delivery->action_token],
+                ]]],
+            ]);
+        } catch (Throwable $e) {
+            return DeliveryOutcome::failed($e->getMessage());
+        }
+
+        if (! $response->successful() || $response->json('ok') !== true) {
+            return DeliveryOutcome::failed('Telegram: '.($response->json('description') ?? "HTTP {$response->status()}"));
+        }
+
+        return DeliveryOutcome::ok(['message_id' => $response->json('result.message_id')]);
+    }
+
+    public function onDone(Event $event, Delivery $delivery): void
+    {
+        $messageId = $delivery->meta['message_id'] ?? null;
+        $chatId = $delivery->channel?->config['chat_id'] ?? null;
+        if ($messageId === null || $chatId === null) {
+            return;
+        }
+        try {
+            $this->call('editMessageReplyMarkup', ['chat_id' => $chatId, 'message_id' => $messageId, 'reply_markup' => ['inline_keyboard' => []]]);
+        } catch (Throwable) {
+            // best effort
+        }
+    }
+
+    public function touch(int|string $chatId): void
+    {
+        Cache::put($this->seenKey($chatId), true, $this->seenTtl);
+    }
+
+    public function sendText(int|string $chatId, string $text): void
+    {
+        try {
+            $this->call('sendMessage', ['chat_id' => $chatId, 'text' => $text]);
+        } catch (Throwable) {
+            // best effort
+        }
+    }
+
+    public function answerCallback(string $callbackId, string $text): void
+    {
+        try {
+            $this->call('answerCallbackQuery', ['callback_query_id' => $callbackId, 'text' => $text]);
+        } catch (Throwable) {
+            // best effort
+        }
+    }
+
+    private function call(string $method, array $params): Response
+    {
+        return Http::timeout(5)->asJson()->post("https://api.telegram.org/bot{$this->botToken}/{$method}", $params);
+    }
+
+    private function seenKey(int|string $chatId): string
+    {
+        return "tg:seen:{$chatId}";
+    }
+}
diff --git a/core/app/Channels/WebChannel.php b/core/app/Channels/WebChannel.php
new file mode 100644
index 0000000..275d02f
--- /dev/null
+++ b/core/app/Channels/WebChannel.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Channels;
+
+use App\Enums\Presence;
+use App\Models\Delivery;
+use App\Models\Event;
+use App\Models\User;
+use Illuminate\Support\Facades\Cache;
+
+/** Инбокс. Ничего не шлёт (страница и так показывает всё), но присутствие определяет. */
+final class WebChannel implements ChannelDriver
+{
+    public function presence(User $user, array $config): Presence
+    {
+        return Cache::has("heartbeat:{$user->id}") ? Presence::Present : Presence::Absent;
+    }
+
+    public function deliver(Event $event, User $user, array $config, Delivery $delivery): DeliveryOutcome
+    {
+        return DeliveryOutcome::ok();
+    }
+
+    public function onDone(Event $event, Delivery $delivery): void {}
+}
diff --git a/core/app/Channels/WebhookChannel.php b/core/app/Channels/WebhookChannel.php
new file mode 100644
index 0000000..94ccf6e
--- /dev/null
+++ b/core/app/Channels/WebhookChannel.php
@@ -0,0 +1,70 @@
+<?php
+
+namespace App\Channels;
+
+use App\Enums\Presence;
+use App\Http\Controllers\Api\EventsController as Presenter;
+use App\Models\Delivery;
+use App\Models\Event;
+use App\Models\User;
+use Illuminate\Support\Facades\Http;
+use Throwable;
+
+/** Универсальный webhook. В нашем случае — Home Assistant. */
+final class WebhookChannel implements ChannelDriver
+{
+    public function __construct(private readonly int $presenceTimeout) {}
+
+    public function presence(User $user, array $config): Presence
+    {
+        try {
+            $response = Http::timeout($this->presenceTimeout)->acceptJson()->get($config['presence_url']);
+            if (! $response->successful()) {
+                return Presence::Unknown;
+            }
+
+            return $response->json('present') === true ? Presence::Present : Presence::Absent;
+        } catch (Throwable) {
+            return Presence::Unknown;
+        }
+    }
+
+    public function deliver(Event $event, User $user, array $config, Delivery $delivery): DeliveryOutcome
+    {
+        try {
+            $response = Http::timeout(5)->asJson()->post($config['deliver_url'], self::payload($event, $delivery));
+            if ($response->successful()) {
+                return DeliveryOutcome::ok();
+            }
+
+            return DeliveryOutcome::failed("HTTP {$response->status()}: ".mb_substr($response->body(), 0, 200));
+        } catch (Throwable $e) {
+            return DeliveryOutcome::failed($e->getMessage());
+        }
+    }
+
+    public function onDone(Event $event, Delivery $delivery): void {}
+
+    /** @return array<string,mixed> */
+    public static function payload(Event $event, Delivery $delivery): array
+    {
+        $presented = Presenter::present($event);
+
+        return [
+            'event' => [
+                'id' => $event->id,
+                'state' => $presented['state'],
+                'due_at' => $presented['due_at'],
+                'source' => $event->source->name,
+                'title' => $event->payload['title'],
+                'subtitle' => $event->payload['subtitle'] ?? null,
+                'deep_link' => $event->payload['deep_link'] ?? null,
+                'done_label' => $event->payload['done_label'] ?? 'Сделано',
+            ],
+            'actions' => [
+                'ack' => route('action.ack', $delivery->action_token),
+                'done' => route('action.done', $delivery->action_token),
+            ],
+        ];
+    }
+}
diff --git a/core/app/Delivery/EventActions.php b/core/app/Delivery/EventActions.php
index 167ae33..f770e9a 100644
--- a/core/app/Delivery/EventActions.php
+++ b/core/app/Delivery/EventActions.php
@@ -2,6 +2,7 @@
 
 namespace App\Delivery;
 
+use App\Channels\ChannelRegistry;
 use App\Enums\EventState;
 use App\Models\Event;
 use App\Scheduling\DueResolver;
@@ -12,6 +13,7 @@ final class EventActions
     public function __construct(
         private readonly DueResolver $due,
         private readonly QuietRule $quiet,
+        private readonly ChannelRegistry $channels,
     ) {}
 
     /** «Помню»: молчать до следующей контрольной точки текущего состояния. */
@@ -35,5 +37,9 @@ final class EventActions
         $event->state = EventState::Done;
         $event->done_at = now();
         $event->save();
+
+        foreach ($event->deliveries()->with('channel')->get() as $delivery) {
+            $this->channels->for($delivery->channel->type)->onDone($event, $delivery);
+        }
     }
 }
diff --git a/core/app/Providers/AppServiceProvider.php b/core/app/Providers/AppServiceProvider.php
index 878c9b6..ac4a4ad 100644
--- a/core/app/Providers/AppServiceProvider.php
+++ b/core/app/Providers/AppServiceProvider.php
@@ -16,6 +16,12 @@ class AppServiceProvider extends ServiceProvider
             config('hado.fallback_hour_minutes'),
             config('hado.fallback_hours'),
         ));
+
+        $this->app->singleton(\App\Channels\WebhookChannel::class, fn () => new \App\Channels\WebhookChannel(config('hado.presence_timeout')));
+        $this->app->singleton(\App\Channels\TelegramChannel::class, fn () => new \App\Channels\TelegramChannel(
+            config('hado.telegram.token'),
+            config('hado.telegram.seen_ttl'),
+        ));
     }
 
     /**
diff --git a/core/tests/Unit/Channels/TelegramChannelTest.php b/core/tests/Unit/Channels/TelegramChannelTest.php
new file mode 100644
index 0000000..965a8f3
--- /dev/null
+++ b/core/tests/Unit/Channels/TelegramChannelTest.php
@@ -0,0 +1,91 @@
+<?php
+
+namespace Tests\Unit\Channels;
+
+use App\Channels\TelegramChannel;
+use App\Enums\AfterDue;
+use App\Enums\DueMode;
+use App\Enums\EventState;
+use App\Enums\Presence;
+use App\Models\Delivery;
+use App\Models\Event;
+use App\Models\Source;
+use App\Models\User;
+use Illuminate\Http\Client\Request;
+use Illuminate\Support\Facades\Http;
+use Tests\TestCase;
+
+class TelegramChannelTest extends TestCase
+{
+    private function driver(): TelegramChannel
+    {
+        return new TelegramChannel('test-token', 600);
+    }
+
+    private function event(): Event
+    {
+        $event = new Event([
+            'due_mode' => DueMode::Local, 'due_date' => '2026-08-14', 'due_time' => '24:00:00', 'fire_on' => '2026-08-14',
+            'after_due' => AfterDue::Expire, 'state' => EventState::Today,
+            'payload' => ['title' => 'Сегодня ДР — Вася', 'subtitle' => 'исполняется 34', 'done_label' => 'Поздравил'],
+        ]);
+        $event->id = 17;
+        $event->setRelation('source', new Source(['name' => 'docs']));
+
+        return $event;
+    }
+
+    public function test_presence_is_unknown_unless_recently_seen(): void
+    {
+        $user = new User(['login' => 'n', 'tz' => 'UTC']);
+        $this->assertSame(Presence::Unknown, $this->driver()->presence($user, ['chat_id' => 555]));
+
+        $this->driver()->touch(555);
+        $this->assertSame(Presence::Present, $this->driver()->presence($user, ['chat_id' => 555]));
+    }
+
+    public function test_deliver_sends_message_with_two_buttons_and_stores_message_id(): void
+    {
+        Http::fake(['api.telegram.org/*' => Http::response(['ok' => true, 'result' => ['message_id' => 9001]])]);
+
+        $outcome = $this->driver()->deliver($this->event(), new User(['login' => 'n', 'tz' => 'UTC']), ['chat_id' => 555], new Delivery(['action_token' => 'tok']));
+
+        $this->assertTrue($outcome->ok);
+        $this->assertSame(['message_id' => 9001], $outcome->meta);
+        Http::assertSent(function (Request $r) {
+            $kb = $r['reply_markup']['inline_keyboard'][0];
+
+            return str_ends_with($r->url(), '/bottest-token/sendMessage')
+                && $r['chat_id'] === 555
+                && str_contains($r['text'], 'Сегодня ДР — Вася')
+                && str_contains($r['text'], 'исполняется 34')
+                && $kb[0] === ['text' => 'Помню', 'callback_data' => 'ack:tok']
+                && $kb[1] === ['text' => 'Поздравил', 'callback_data' => 'done:tok'];
+        });
+    }
+
+    public function test_deliver_fails_on_api_error(): void
+    {
+        Http::fake(['api.telegram.org/*' => Http::response(['ok' => false, 'description' => 'chat not found'], 400)]);
+
+        $outcome = $this->driver()->deliver($this->event(), new User(['login' => 'n', 'tz' => 'UTC']), ['chat_id' => 555], new Delivery(['action_token' => 'tok']));
+
+        $this->assertFalse($outcome->ok);
+        $this->assertStringContainsString('chat not found', $outcome->error);
+    }
+
+    public function test_on_done_clears_buttons_best_effort(): void
+    {
+        Http::fake(['api.telegram.org/*' => Http::response(['ok' => true])]);
+        $delivery = new Delivery(['action_token' => 'tok', 'meta' => ['message_id' => 9001]]);
+        $delivery->setRelation('channel', new \App\Models\Channel(['config' => ['chat_id' => 555]]));
+
+        $this->driver()->onDone($this->event(), $delivery);
+
+        Http::assertSent(fn (Request $r) => str_ends_with($r->url(), '/editMessageReplyMarkup') && $r['message_id'] === 9001 && $r['chat_id'] === 555);
+
+        Http::fake(fn () => throw new \RuntimeException('down'));
+        $this->driver()->onDone($this->event(), $delivery); // не бросает
+        $this->addToAssertionCount(1);
+    }
+}
diff --git a/core/tests/Unit/Channels/WebChannelTest.php b/core/tests/Unit/Channels/WebChannelTest.php
new file mode 100644
index 0000000..c08bb76
--- /dev/null
+++ b/core/tests/Unit/Channels/WebChannelTest.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Tests\Unit\Channels;
+
+use App\Channels\WebChannel;
+use App\Enums\Presence;
+use App\Models\User;
+use Illuminate\Support\Facades\Cache;
+use Tests\TestCase;
+
+class WebChannelTest extends TestCase
+{
+    public function test_presence_follows_heartbeat(): void
+    {
+        $user = new User(['login' => 'n', 'tz' => 'UTC']);
+        $user->id = 7;
+        $driver = new WebChannel;
+
+        $this->assertSame(Presence::Absent, $driver->presence($user, []));
+        Cache::put('heartbeat:7', true, 90);
+        $this->assertSame(Presence::Present, $driver->presence($user, []));
+    }
+}
diff --git a/core/tests/Unit/Channels/WebhookChannelTest.php b/core/tests/Unit/Channels/WebhookChannelTest.php
new file mode 100644
index 0000000..c79ce08
--- /dev/null
+++ b/core/tests/Unit/Channels/WebhookChannelTest.php
@@ -0,0 +1,103 @@
+<?php
+
+namespace Tests\Unit\Channels;
+
+use App\Channels\WebhookChannel;
+use App\Enums\AfterDue;
+use App\Enums\DueMode;
+use App\Enums\EventState;
+use App\Enums\Presence;
+use App\Models\Delivery;
+use App\Models\Event;
+use App\Models\Source;
+use App\Models\User;
+use Illuminate\Http\Client\ConnectionException;
+use Illuminate\Http\Client\Request;
+use Illuminate\Support\Facades\Http;
+use Illuminate\Support\Facades\Route;
+use Tests\TestCase;
+
+class WebhookChannelTest extends TestCase
+{
+    private array $config = ['deliver_url' => 'https://ha.test/api/webhook/hado', 'presence_url' => 'https://ha.test/api/hado/presence'];
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        Route::post('/a/{token}/ack', fn () => '')->name('action.ack');
+        Route::post('/a/{token}/done', fn () => '')->name('action.done');
+        // Laravel only refreshes the named-route lookup table once, right after the app's own
+        // route files finish loading during boot. Routes added later (e.g. here in setUp) are
+        // appended to the collection but never indexed by name unless we refresh explicitly,
+        // so route('action.ack', ...) would otherwise throw RouteNotFoundException. This does
+        // not affect production: Task 10's real routes live in the route files that already
+        // get refreshed automatically.
+        Route::getRoutes()->refreshNameLookups();
+    }
+
+    private function driver(): WebhookChannel
+    {
+        return new WebhookChannel(2);
+    }
+
+    public function test_presence_from_json(): void
+    {
+        Http::fake([
+            'ha.test/api/hado/presence' => Http::sequence()
+                ->push(['present' => true])
+                ->push(['present' => false])
+                ->push('oops', 500),
+        ]);
+        $user = new User(['login' => 'n', 'tz' => 'UTC']);
+
+        $this->assertSame(Presence::Present, $this->driver()->presence($user, $this->config));
+        $this->assertSame(Presence::Absent, $this->driver()->presence($user, $this->config));
+        $this->assertSame(Presence::Unknown, $this->driver()->presence($user, $this->config));
+    }
+
+    public function test_presence_unknown_on_timeout(): void
+    {
+        Http::fake(fn () => throw new ConnectionException('timeout'));
+        $this->assertSame(Presence::Unknown, $this->driver()->presence(new User(['login' => 'n', 'tz' => 'UTC']), $this->config));
+    }
+
+    public function test_deliver_posts_event_and_action_urls(): void
+    {
+        Http::fake(['ha.test/api/webhook/hado' => Http::response('', 200)]);
+
+        $event = new Event([
+            'due_mode' => DueMode::Local, 'due_date' => '2026-08-14', 'due_time' => '24:00:00', 'fire_on' => '2026-08-14',
+            'after_due' => AfterDue::Expire, 'state' => EventState::Today,
+            'payload' => ['title' => 'Сегодня ДР — Вася', 'subtitle' => 'исполняется 34', 'deep_link' => '/people/42', 'done_label' => 'Поздравил'],
+        ]);
+        $event->id = 17;
+        $event->setRelation('source', new Source(['name' => 'docs']));
+        $delivery = new Delivery(['action_token' => 'tok123']);
+
+        $outcome = $this->driver()->deliver($event, new User(['login' => 'n', 'tz' => 'UTC']), $this->config, $delivery);
+
+        $this->assertTrue($outcome->ok);
+        Http::assertSent(function (Request $r) {
+            return $r->url() === 'https://ha.test/api/webhook/hado'
+                && $r['event']['id'] === 17
+                && $r['event']['title'] === 'Сегодня ДР — Вася'
+                && $r['event']['done_label'] === 'Поздравил'
+                && $r['event']['source'] === 'docs'
+                && $r['event']['due_at'] === '2026-08-14'
+                && str_ends_with($r['actions']['ack'], '/a/tok123/ack')
+                && str_ends_with($r['actions']['done'], '/a/tok123/done');
+        });
+    }
+
+    public function test_deliver_reports_failure(): void
+    {
+        Http::fake(['ha.test/api/webhook/hado' => Http::response('nope', 503)]);
+        $event = new Event(['due_mode' => DueMode::Local, 'due_date' => '2026-08-14', 'due_time' => '24:00:00', 'fire_on' => '2026-08-14', 'after_due' => AfterDue::Expire, 'state' => EventState::Today, 'payload' => ['title' => 't']]);
+        $event->setRelation('source', new Source(['name' => 'docs']));
+
+        $outcome = $this->driver()->deliver($event, new User(['login' => 'n', 'tz' => 'UTC']), $this->config, new Delivery(['action_token' => 'x']));
+
+        $this->assertFalse($outcome->ok);
+        $this->assertStringContainsString('503', $outcome->error);
+    }
+}