diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..33efdbf
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,54 @@
+# Continuous integration: configure + build (-Werror), formatting check, and the
+# unit + UI test suites on a macOS runner (the project's primary platform).
+#
+# Integration tests need PostgreSQL, which macOS runners cannot provide via
+# Docker; they are opt-in (MODULO_TEST_DB_URL) and therefore report as Skipped
+# here. A Linux job with a Postgres service container arrives with the
+# containerized backend (Increment 9).
+
+name: CI
+
+on:
+  push:
+    branches: [main, "increment-*"]
+  pull_request:
+
+concurrency:
+  group: ci-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build-and-test:
+    name: Build & test (macOS, Apple Silicon)
+    runs-on: macos-15
+    timeout-minutes: 45
+
+    steps:
+      - name: Check out
+        uses: actions/checkout@v4
+
+      - name: Install dependencies
+        # clang-format (small formula) instead of the full llvm keg; scripts/format.sh
+        # picks it up through CLANG_FORMAT.
+        run: brew install ninja qt libpq libpqxx libsodium clang-format
+
+      - name: Show toolchain versions
+        run: |
+          cmake --version | head -1
+          ninja --version
+          brew list --versions qt libpqxx libsodium clang-format
+          "$(brew --prefix clang-format)/bin/clang-format" --version
+
+      - name: Configure
+        run: cmake --preset ci
+
+      - name: Build
+        run: cmake --build --preset ci
+
+      - name: Check formatting
+        env:
+          CLANG_FORMAT: /opt/homebrew/opt/clang-format/bin/clang-format
+        run: scripts/format.sh --check
+
+      - name: Run tests (unit + ui; integration skips without a database)
+        run: ctest --preset ci
diff --git a/CMakePresets.json b/CMakePresets.json
index 28203e7..44d33ca 100644
--- a/CMakePresets.json
+++ b/CMakePresets.json
@@ -1,6 +1,10 @@
 {
     "version": 6,
-    "cmakeMinimumRequired": { "major": 3, "minor": 28, "patch": 0 },
+    "cmakeMinimumRequired": {
+        "major": 3,
+        "minor": 28,
+        "patch": 0
+    },
     "configurePresets": [
         {
             "name": "base",
@@ -10,7 +14,8 @@
             "cacheVariables": {
                 "CMAKE_PREFIX_PATH": "/opt/homebrew/opt/qt",
                 "CMAKE_EXPORT_COMPILE_COMMANDS": "ON",
-                "WrapOpenGL_AGL": "/Library/Developer/CommandLineTools/SDKs/MacOSX15.4.sdk/System/Library/Frameworks/AGL.framework"
+                "WrapOpenGL_AGL": "/Library/Developer/CommandLineTools/SDKs/MacOSX15.4.sdk/System/Library/Frameworks/AGL.framework",
+                "PostgreSQL_ROOT": "/opt/homebrew/opt/libpq"
             }
         },
         {
@@ -45,37 +50,88 @@
             "cacheVariables": {
                 "CMAKE_BUILD_TYPE": "RelWithDebInfo"
             }
+        },
+        {
+            "name": "ci",
+            "displayName": "Continuous integration (GitHub Actions macOS runner)",
+            "inherits": "dev",
+            "cacheVariables": {
+                "WrapOpenGL_AGL": ""
+            }
         }
     ],
     "buildPresets": [
-        { "name": "dev", "configurePreset": "dev" },
-        { "name": "dev-asan", "configurePreset": "dev-asan" },
-        { "name": "dev-tidy", "configurePreset": "dev-tidy" },
-        { "name": "release", "configurePreset": "release" }
+        {
+            "name": "dev",
+            "configurePreset": "dev"
+        },
+        {
+            "name": "dev-asan",
+            "configurePreset": "dev-asan"
+        },
+        {
+            "name": "dev-tidy",
+            "configurePreset": "dev-tidy"
+        },
+        {
+            "name": "release",
+            "configurePreset": "release"
+        },
+        {
+            "name": "ci",
+            "configurePreset": "ci"
+        }
     ],
     "testPresets": [
         {
             "name": "unit",
             "configurePreset": "dev",
-            "filter": { "include": { "label": "^unit$" } },
-            "output": { "outputOnFailure": true }
+            "filter": {
+                "include": {
+                    "label": "^unit$"
+                }
+            },
+            "output": {
+                "outputOnFailure": true
+            }
         },
         {
             "name": "integration",
             "configurePreset": "dev",
-            "filter": { "include": { "label": "^integration$" } },
-            "output": { "outputOnFailure": true }
+            "filter": {
+                "include": {
+                    "label": "^integration$"
+                }
+            },
+            "output": {
+                "outputOnFailure": true
+            }
         },
         {
             "name": "ui",
             "configurePreset": "dev",
-            "filter": { "include": { "label": "^ui$" } },
-            "output": { "outputOnFailure": true }
+            "filter": {
+                "include": {
+                    "label": "^ui$"
+                }
+            },
+            "output": {
+                "outputOnFailure": true
+            }
         },
         {
             "name": "all",
             "configurePreset": "dev",
-            "output": { "outputOnFailure": true }
+            "output": {
+                "outputOnFailure": true
+            }
+        },
+        {
+            "name": "ci",
+            "configurePreset": "ci",
+            "output": {
+                "outputOnFailure": true
+            }
         }
     ]
 }
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..a3e8614
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Angelo Barbu
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
index d3e72fc..4fee2bd 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,8 @@
 # Modulo
 
+[![CI](https://github.com/angelobarbu/Modulo/actions/workflows/ci.yml/badge.svg)](https://github.com/angelobarbu/Modulo/actions/workflows/ci.yml)
+[![License: MIT](https://img.shields.io/badge/License-MIT-00ffa3.svg)](LICENSE)
+
 A personal investment tracker for crypto and stock assets — transactions, bank↔exchange
 transfers, aggregated holdings with dashboards, uploaded documents, and daily exchange-rate
 updates.
@@ -35,7 +38,7 @@ keeping the future container's migration entrypoint minimal.
 [Development database](#development-database) · [Testing](#testing) ·
 [Code style](#code-style) · [Development workflow](#development-workflow) ·
 [Repository layout](#repository-layout) · [Roadmap](#roadmap) ·
-[Implementation log](#implementation-log)
+[Implementation log](#implementation-log) · [License](#license)
 
 ## Architecture
 
@@ -70,6 +73,9 @@ brew install cmake ninja llvm libpqxx libsodium qt
 - **Qt 6.8+** is expected at `/opt/homebrew/opt/qt` (the CMake presets bake this path in).
 - **llvm** provides `clang-format`/`clang-tidy`; it is keg-only, so scripts and CMake
   reference `/opt/homebrew/opt/llvm/bin` by absolute path.
+- **libpqxx** pulls in the keg-only `libpq`; the presets point CMake at it
+  (`PostgreSQL_ROOT=/opt/homebrew/opt/libpq`) so the build never depends on a stray
+  local PostgreSQL installation.
 - **Docker** (Docker Desktop or any `docker compose` v2) must be running for the
   development database.
 - The local Homebrew PostgreSQL (if any) can run in parallel - the dockerized database uses
@@ -105,6 +111,7 @@ cmake --build --preset dev    # build
 | `dev-asan` | `dev` + address & undefined-behavior sanitizers |
 | `dev-tidy` | `dev` + clang-tidy on every compile |
 | `release` | RelWithDebInfo |
+| `ci` | `dev` without the local AGL SDK pin — used by GitHub Actions |
 
 Build directories are generated in `build/<preset>/`. All dependencies are Homebrew binary
 libraries — nothing is downloaded at configure time.
@@ -228,6 +235,13 @@ Work is organized in **increments** (a coherent feature area) made of small **st
 - every step ships with its README update (see the [Implementation log](#implementation-log))
   and must pass a clean `-Werror` build, `scripts/format.sh --check`, and `ctest --preset all`.
 
+**Continuous integration** ([`.github/workflows/ci.yml`](.github/workflows/ci.yml)) runs on
+every push to `main`/`increment-*` and on pull requests: a macOS (Apple Silicon) runner
+installs the Homebrew dependencies, configures with the `ci` preset (identical to `dev`
+minus the machine-specific AGL pin), builds with `-Werror`, checks formatting, and runs
+the unit and UI suites. Integration tests report as *Skipped* in CI until a Linux job with
+a PostgreSQL service container arrives alongside the containerized backend.
+
 ## Repository layout
 
 ```
@@ -280,3 +294,8 @@ CMakePresets.json configure/build/test presets (dev, dev-asan, dev-tidy, release
 | 1.6 — Test scaffolding | One passing suite per layer: core, api (DTO + `require*` rejection paths), config, in-process HTTP integration (opt-in via `MODULO_TEST_DB_URL`, Skipped otherwise), QML smoke (offscreen); toolkit auto-discovers `tests/` dirs |
 | 1.6b — Qt Test everywhere | Decision: Qt Test replaces Catch2 (one framework for C++ and QML); Catch2 + CPM removed — the project now has zero source-level dependencies |
 | 1.7 — Docs finalization | README restructured for a public audience (status, contents, architecture, workflow, roadmap); HLD gained the test-architecture view; local working agreement (CLAUDE.md) refreshed |
+| 1.8 — Public-repo readiness | MIT `LICENSE`; GitHub Actions CI (macOS runner: brew deps, `ci` preset, `-Werror` build, format check, unit + ui tests); README badges + License section; repository made public and tagged `v0.1.0` |
+
+## License
+
+Modulo is released under the [MIT License](LICENSE).