diff --git a/systemd/observabilidade-patterns.env.example b/systemd/observabilidade-patterns.env.example
new file mode 100644
index 0000000..32ed8a9
--- /dev/null
+++ b/systemd/observabilidade-patterns.env.example
@@ -0,0 +1,2 @@
+DESK_API_TOKEN=coloca-token-aqui
+DESK_BASE_URL=https://desk.descomplicar.pt
diff --git a/systemd/observabilidade-patterns.service b/systemd/observabilidade-patterns.service
new file mode 100644
index 0000000..30ec34a
--- /dev/null
+++ b/systemd/observabilidade-patterns.service
@@ -0,0 +1,13 @@
+[Unit]
+Description=Observabilidade — detector semanal de padrões
+After=default.target
+
+[Service]
+Type=oneshot
+WorkingDirectory=/media/ealmeida/Dados/Dev/DashDescomplicar
+ExecStart=/home/ealmeida/.nvm/versions/node/v22.22.2/bin/npx tsx api/scripts/sessions-patterns.ts --publish
+Environment="OBSERVABILIDADE_DB=/home/ealmeida/.claude-work/sessions.db"
+Environment="PATH=/home/ealmeida/.nvm/versions/node/v22.22.2/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
+EnvironmentFile=/home/ealmeida/.claude-work/observabilidade-patterns.env
+StandardOutput=append:/home/ealmeida/.claude-work/observabilidade-patterns.log
+StandardError=append:/home/ealmeida/.claude-work/observabilidade-patterns.log
diff --git a/systemd/observabilidade-patterns.timer b/systemd/observabilidade-patterns.timer
new file mode 100644
index 0000000..27f8114
--- /dev/null
+++ b/systemd/observabilidade-patterns.timer
@@ -0,0 +1,9 @@
+[Unit]
+Description=Observabilidade — detector semanal
+
+[Timer]
+OnCalendar=Sun 23:00
+Persistent=true
+
+[Install]
+WantedBy=default.target