From f738625a6fbea955acf3ee90f40c1b43b2285640 Mon Sep 17 00:00:00 2001
From: Lucas Gauthier <67895410+lucasgauthier@users.noreply.github.com>
Date: Sun, 15 Feb 2026 16:13:19 +0100
Subject: [PATCH 1/9] add GitHub Actions CI workflow

---
 .github/workflows/ci.yml | 80 ++++++++++++++++++++++++++++++++++++++++
 .vscode/settings.json    |  3 +-
 2 files changed, 82 insertions(+), 1 deletion(-)
 create mode 100644 .github/workflows/ci.yml

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..ac94d49
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,80 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 24.10.0
+          cache: pnpm
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10.28.2
+
+      - name: Install dependencies
+        run: pnpm i --frozen-lockfile
+
+      - name: Lint
+        run: pnpm lint
+
+  typecheck:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 24.10.0
+          cache: pnpm
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10.28.2
+
+      - name: Install dependencies
+        run: pnpm i --frozen-lockfile
+
+      - name: Typecheck
+        run: pnpm typecheck
+
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 24.10.0
+          cache: pnpm
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10.28.2
+
+      - name: Install dependencies
+        run: pnpm i --frozen-lockfile
+
+      - name: Test
+        run: pnpm test
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 1e788dc..279b2b1 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -29,7 +29,8 @@
     "markdown",
     "json",
     "jsonc",
-    "yaml"
+    "yaml",
+    "github-actions-workflow"
   ],
 
   "eslint.workingDirectories": [

From 149eda6e0b47c5dc8d985bf0e1f61021e5f56c7d Mon Sep 17 00:00:00 2001
From: Lucas Gauthier <67895410+lucasgauthier@users.noreply.github.com>
Date: Sun, 15 Feb 2026 18:32:57 +0100
Subject: [PATCH 2/9] remove cache option

---
 .github/workflows/ci.yml | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ac94d49..69e8b1c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,6 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: 24.10.0
-          cache: pnpm
 
       - name: Install pnpm
         uses: pnpm/action-setup@v4
@@ -43,7 +42,6 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: 24.10.0
-          cache: pnpm
 
       - name: Install pnpm
         uses: pnpm/action-setup@v4
@@ -66,7 +64,6 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: 24.10.0
-          cache: pnpm
 
       - name: Install pnpm
         uses: pnpm/action-setup@v4

From 76456fb145750f48a5dbe41e41b798b7cd120801 Mon Sep 17 00:00:00 2001
From: Lucas Gauthier <67895410+lucasgauthier@users.noreply.github.com>
Date: Sun, 15 Feb 2026 18:34:41 +0100
Subject: [PATCH 3/9] break lint (on purpose to check CI)

---
 src/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/index.ts b/src/index.ts
index 93ffe3b..31b3048 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -4,7 +4,7 @@ import assert from 'node:assert'
 import { add, complex, multiply } from 'mathjs'
 
 export type ComplexFunction = (t: number) => Complex
-
+ 
 const INCREMENT = 1e-3
 
 /**

From 287e810d97aebd4bab08364489a1f2f73b023c8b Mon Sep 17 00:00:00 2001
From: Lucas Gauthier <67895410+lucasgauthier@users.noreply.github.com>
Date: Sun, 15 Feb 2026 18:35:41 +0100
Subject: [PATCH 4/9] fix lint (revert)

---
 src/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/index.ts b/src/index.ts
index 31b3048..93ffe3b 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -4,7 +4,7 @@ import assert from 'node:assert'
 import { add, complex, multiply } from 'mathjs'
 
 export type ComplexFunction = (t: number) => Complex
- 
+
 const INCREMENT = 1e-3
 
 /**

From 9ea4bd5f7fe7107c7f8a6b88d3320ea96f148aa3 Mon Sep 17 00:00:00 2001
From: Lucas Gauthier <67895410+lucasgauthier@users.noreply.github.com>
Date: Sun, 15 Feb 2026 18:47:54 +0100
Subject: [PATCH 5/9] add permissions section to CI workflow

---
 .github/workflows/ci.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 69e8b1c..4bd2e32 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,8 @@
 name: CI
 
+permissions:
+  contents: read
+
 on:
   push:
     branches:

From a3ec10f50d16e0f8f2df930b88454e775df2bafc Mon Sep 17 00:00:00 2001
From: Lucas Gauthier <67895410+lucasgauthier@users.noreply.github.com>
Date: Sun, 15 Feb 2026 18:48:35 +0100
Subject: [PATCH 6/9] add .nvmrc file and specify Node.js version in
 package.json

---
 .nvmrc       | 1 +
 package.json | 1 +
 2 files changed, 2 insertions(+)
 create mode 100644 .nvmrc

diff --git a/.nvmrc b/.nvmrc
new file mode 100644
index 0000000..2165135
--- /dev/null
+++ b/.nvmrc
@@ -0,0 +1 @@
+24.10.0
diff --git a/package.json b/package.json
index c1ae743..c3439a4 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,7 @@
     "dist"
   ],
   "engines": {
+    "node": ">=24.10.0",
     "pnpm": ">=10.28.2"
   },
   "scripts": {

From c1a1ec60b9ea8f9676514ea0bd8c60cfd378f345 Mon Sep 17 00:00:00 2001
From: Lucas Gauthier <67895410+lucasgauthier@users.noreply.github.com>
Date: Sun, 15 Feb 2026 18:52:17 +0100
Subject: [PATCH 7/9] refactor CI configuration to use .nvmrc for Node.js
 version

---
 .github/workflows/ci.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4bd2e32..f3b32bb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
       - name: Set node
         uses: actions/setup-node@v4
         with:
-          node-version: 24.10.0
+          node-version-file: .nvmrc
 
       - name: Install pnpm
         uses: pnpm/action-setup@v4
@@ -44,7 +44,7 @@ jobs:
       - name: Set node
         uses: actions/setup-node@v4
         with:
-          node-version: 24.10.0
+          node-version-file: .nvmrc
 
       - name: Install pnpm
         uses: pnpm/action-setup@v4
@@ -66,7 +66,7 @@ jobs:
       - name: Set node
         uses: actions/setup-node@v4
         with:
-          node-version: 24.10.0
+          node-version-file: .nvmrc
 
       - name: Install pnpm
         uses: pnpm/action-setup@v4

From 955cc5ad9a5960bf4368e781b29fa733f49cfa05 Mon Sep 17 00:00:00 2001
From: Lucas Gauthier <67895410+lucasgauthier@users.noreply.github.com>
Date: Sun, 15 Feb 2026 21:26:25 +0100
Subject: [PATCH 8/9] refactor CI workflow to use centralized CI setup action

---
 .github/actions/ci-setup/action.yml | 23 +++++++++++++
 .github/workflows/ci.yml            | 51 ++++-------------------------
 2 files changed, 29 insertions(+), 45 deletions(-)
 create mode 100644 .github/actions/ci-setup/action.yml

diff --git a/.github/actions/ci-setup/action.yml b/.github/actions/ci-setup/action.yml
new file mode 100644
index 0000000..1cfcc38
--- /dev/null
+++ b/.github/actions/ci-setup/action.yml
@@ -0,0 +1,23 @@
+name: CI setup
+
+description: 'Setup node, pnpm and install project dependencies for CI jobs'
+
+runs:
+  using: composite
+  steps:
+    - name: Checkout code
+      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+
+    - name: Set node
+      uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+      with:
+        node-version-file: .nvmrc
+
+    - name: Install pnpm
+      uses: pnpm/action-setup@41ff72655975bd51cab0327fa583b6e92b6d3061 # v4.2.0
+      with:
+        version: 10.28.2
+
+    - name: Install dependencies
+      shell: bash
+      run: pnpm i --frozen-lockfile
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f3b32bb..60f7ae6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,21 +16,8 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-
-      - name: Set node
-        uses: actions/setup-node@v4
-        with:
-          node-version-file: .nvmrc
-
-      - name: Install pnpm
-        uses: pnpm/action-setup@v4
-        with:
-          version: 10.28.2
-
-      - name: Install dependencies
-        run: pnpm i --frozen-lockfile
+      - name: Setup environment
+        uses: ./.github/actions/ci-setup
 
       - name: Lint
         run: pnpm lint
@@ -38,21 +25,8 @@ jobs:
   typecheck:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-
-      - name: Set node
-        uses: actions/setup-node@v4
-        with:
-          node-version-file: .nvmrc
-
-      - name: Install pnpm
-        uses: pnpm/action-setup@v4
-        with:
-          version: 10.28.2
-
-      - name: Install dependencies
-        run: pnpm i --frozen-lockfile
+      - name: Setup environment
+        uses: ./.github/actions/ci-setup
 
       - name: Typecheck
         run: pnpm typecheck
@@ -60,21 +34,8 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-
-      - name: Set node
-        uses: actions/setup-node@v4
-        with:
-          node-version-file: .nvmrc
-
-      - name: Install pnpm
-        uses: pnpm/action-setup@v4
-        with:
-          version: 10.28.2
-
-      - name: Install dependencies
-        run: pnpm i --frozen-lockfile
+      - name: Setup environment
+        uses: ./.github/actions/ci-setup
 
       - name: Test
         run: pnpm test

From 57f42418ddba1018a4617c39ed6d404d63901086 Mon Sep 17 00:00:00 2001
From: Lucas Gauthier <67895410+lucasgauthier@users.noreply.github.com>
Date: Sun, 15 Feb 2026 21:33:12 +0100
Subject: [PATCH 9/9] fix checkout step

---
 .github/actions/ci-setup/action.yml | 3 ---
 .github/workflows/ci.yml            | 9 +++++++++
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/.github/actions/ci-setup/action.yml b/.github/actions/ci-setup/action.yml
index 1cfcc38..2ae1ae6 100644
--- a/.github/actions/ci-setup/action.yml
+++ b/.github/actions/ci-setup/action.yml
@@ -5,9 +5,6 @@ description: 'Setup node, pnpm and install project dependencies for CI jobs'
 runs:
   using: composite
   steps:
-    - name: Checkout code
-      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-
     - name: Set node
       uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
       with:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 60f7ae6..59046ab 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,6 +16,9 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout code
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+
       - name: Setup environment
         uses: ./.github/actions/ci-setup
 
@@ -25,6 +28,9 @@ jobs:
   typecheck:
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout code
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+
       - name: Setup environment
         uses: ./.github/actions/ci-setup
 
@@ -34,6 +40,9 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout code
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+
       - name: Setup environment
         uses: ./.github/actions/ci-setup