diff --git a/.tangled/workflows/test.yml b/.tangled/workflows/test.yml
index 5af0366..ac8eeb0 100644
--- a/.tangled/workflows/test.yml
+++ b/.tangled/workflows/test.yml
@@ -5,26 +5,12 @@ when:
     branch: ["main", "master"]
 
 engine: "microvm"
-image: "nixos"
+image: "alpine"
 
 clone:
   depth: 1
   submodules: false
 
-registry:
-  nixpkgs: "github:NixOS/nixpkgs/624af665418d3c65d544145b4d34ad696439570e"
-
-dependencies:
-  - beam28Packages.erlang
-  - beam28Packages.rebar3
-  - nodejs_22
-  - git
-  - curl
-  - coreutils
-  - gnutar
-  - gzip
-  - xz
-
 steps:
   # Tangled injects repository secrets into every step. Gleam 1.18 and later
   # reads HEXPM_READ_API_KEY automatically for authenticated Hex requests.
@@ -33,6 +19,23 @@ steps:
       set -euo pipefail
       : "${HEXPM_READ_API_KEY:?Configure HEXPM_READ_API_KEY in Tangled repository secrets}"
 
+      apk add --no-cache \
+        bash \
+        build-base \
+        ca-certificates \
+        cargo \
+        coreutils \
+        curl \
+        erlang28 \
+        git \
+        gzip \
+        nodejs \
+        npm \
+        rebar3 \
+        rust \
+        tar \
+        xz
+
       temporary_directory="$(mktemp -d)"
       trap 'rm -rf "${temporary_directory}"' EXIT
       binary_directory="${HOME}/.local/bin"
@@ -49,19 +52,12 @@ steps:
       tar --extract --gzip --file "${gleam_archive}" --directory "${temporary_directory}"
       install -m 0755 "${temporary_directory}/gleam" "${binary_directory}/gleam"
 
-      trellis_directory="${temporary_directory}/trellis"
-      trellis_archive="${temporary_directory}/trellis.tar.xz"
-      mkdir -p "${trellis_directory}"
-      curl --fail --location --silent --show-error --proto '=https' --tlsv1.2 \
-        "https://github.com/tylerbutler/trellis/releases/download/v0.7.0/trellis-gleam-x86_64-unknown-linux-gnu.tar.xz" \
-        --output "${trellis_archive}"
-      printf '%s  %s\n' \
-        "3f9dc5967dd540679f8d720548fa4e3e129660179c0325e9a955baf2911fdbe8" \
-        "${trellis_archive}" \
-        | sha256sum --check -
-      tar --extract --xz --file "${trellis_archive}" \
-        --strip-components 1 --directory "${trellis_directory}"
-      install -m 0755 "${trellis_directory}/trellis" "${binary_directory}/trellis"
+      cargo install \
+        --locked \
+        --debug \
+        --version 0.7.0 \
+        --root "${HOME}/.local" \
+        trellis-gleam
 
       export PATH="${binary_directory}:${PATH}"
       gleam --version
diff --git a/CHANGELOG.md b/CHANGELOG.md
index faf2b00..07c9ecc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,9 +5,8 @@
 ### Changed
 
 - Manage Tiramisu, extensions, examples, and example games as one Trellis workspace.
-- Run workspace formatting, tests, and checks through Trellis in Tangled CI.
+- Run workspace formatting, tests, and checks in Nix-free Tangled Alpine MicroVM CI with pinned Gleam and Trellis versions.
 - Skip unconfigured extension tick phases and reuse mounted component metadata instead of rebuilding runtime instances every frame.
-- Run workspace formatting, tests, and checks through Trellis in Tangled CI.
 
 ## v7.0.0 2026-01-10