diff --git a/.tangled/workflows/ci-min.yml b/.tangled/workflows/ci-min.yml
new file mode 100644
index 0000000..778a501
--- /dev/null
+++ b/.tangled/workflows/ci-min.yml
@@ -0,0 +1,27 @@
+when:
+  - event: ["push", "pull_request"]
+    branch: ["main"]
+
+engine: microvm
+image: nixos
+
+dependencies:
+  - beam27Packages.elixir_1_17
+  - beam27Packages.erlang
+
+steps:
+  - name: setup
+    command: |
+      mix local.hex --force
+      mix local.rebar --force
+      mix deps.get
+  - name: compile
+    command: mix compile --warnings-as-errors
+  - name: format
+    command: mix format --check-formatted
+  - name: credo
+    command: mix credo --strict
+  - name: test
+    command: mix test --warnings-as-errors
+  - name: unused
+    command: mix deps.unlock --check-unused
diff --git a/.tangled/workflows/ci-unlocked.yml b/.tangled/workflows/ci-unlocked.yml
new file mode 100644
index 0000000..c6efaf7
--- /dev/null
+++ b/.tangled/workflows/ci-unlocked.yml
@@ -0,0 +1,23 @@
+when:
+  - event: ["push", "pull_request"]
+    branch: ["main"]
+
+engine: microvm
+image: nixos
+
+dependencies:
+  - beam29Packages.elixir_1_20
+  - beam29Packages.erlang
+
+steps:
+  - name: setup
+    command: |
+      mix local.hex --force
+      mix local.rebar --force
+      mix deps.get
+  - name: unlock
+    command: mix deps.unlock --all
+  - name: compile
+    command: mix compile --warnings-as-errors
+  - name: test
+    command: mix test --warnings-as-errors
diff --git a/mix.exs b/mix.exs
index c09423a..4da7983 100644
--- a/mix.exs
+++ b/mix.exs
@@ -5,7 +5,7 @@ defmodule Latch.MixProject do
     [
       app: :latch,
       version: "0.1.0",
-      elixir: "~> 1.20",
+      elixir: "~> 1.17",
       start_permanent: Mix.env() == :prod,
       deps: deps(),
       aliases: aliases(),