diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..26da661
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,11 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: daily
+
+  - package-ecosystem: gomod
+    directory: /
+    schedule:
+      interval: daily
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..ab90e4b
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,18 @@
+name: CI
+
+on: push
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - uses: actions/setup-go@v2
+        with:
+          go-version: 1.16
+
+      - run: go mod tidy
+      - run: go build
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..ccd50fb
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,29 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "*"
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - uses: actions/setup-go@v2
+        with:
+          go-version: 1.16
+
+      - uses: goreleaser/goreleaser-action@v2
+        with:
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          HOMEBREW_TAP_GITHUB_TOKEN: ${{ secrets.HOMEBREW_TAP_GITHUB_TOKEN }}
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9e74846
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/git-sync
+dist/
diff --git a/.goreleaser.yml b/.goreleaser.yml
new file mode 100644
index 0000000..c2fc83b
--- /dev/null
+++ b/.goreleaser.yml
@@ -0,0 +1,40 @@
+before:
+  hooks:
+    - go mod tidy
+builds:
+  - env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - windows
+      - darwin
+archives:
+  - replacements:
+      darwin: Darwin
+      linux: Linux
+      windows: Windows
+      386: i386
+      amd64: x86_64
+checksum:
+  name_template: "checksums.txt"
+snapshot:
+  name_template: "{{ .Tag }}-next"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - "^docs:"
+      - "^test:"
+brews:
+  - tap:
+      owner: jacobwgillespie
+      name: homebrew-tap
+      token: "{{ .Env.HOMEBREW_TAP_GITHUB_TOKEN }}"
+    commit_author:
+      name: Jacob Gillespie
+      email: jacobwgillespie@gmail.com
+    homepage: https://github.com/jacobwgillespie/git-sync
+    description: Git branch sync utility
+    license: MIT
+gomod:
+  proxy: true
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..f252ab3
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,3 @@
+# Changelog
+
+See the [GitHub releases](https://github.com/jacobwgillespie/git-sync/releases) for a full changelog.
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..49433c3
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 Jacob Gillespie <jacobwgillespie@gmail.com>
+
+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
new file mode 100644
index 0000000..e900ff9
--- /dev/null
+++ b/README.md
@@ -0,0 +1,23 @@
+# git-sync
+
+A small CLI that implements the functionality of [`hub sync`](https://github.com/github/hub). Run `git-sync` to fast-forward outdated branches and remove merged and deleted upstream branches.
+
+### Why
+
+`hub` is deprecated by the [`gh` CLI](https://github.com/cli/cli), and I haven't found an alternative script that performs the same actions as `hub sync`.
+
+## Installation
+
+Either download from the [project releases](https://github.com/jacobwgillespie/git-sync/releases), or install with Homebrew:
+
+```shell
+$ brew install jacobwgillespie/tap/git-sync
+```
+
+## Usage
+
+Run either `git-sync` or `git sync`.
+
+## License
+
+MIT License, see `LICENSE`
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..a57d967
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,11 @@
+module github.com/jacobwgillespie/git-sync
+
+go 1.16
+
+require (
+	github.com/go-git/go-git/v5 v5.3.0
+	github.com/google/go-cmp v0.5.5 // indirect
+	github.com/sergi/go-diff v1.2.0 // indirect
+	github.com/stretchr/testify v1.7.0 // indirect
+	golang.org/x/text v0.3.5 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..3b63270
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,99 @@
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+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..948d0ce
--- /dev/null
+++ b/main.go
@@ -0,0 +1,28 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/go-git/go-git/v5"
+)
+
+func main() {
+	path, err := os.Getwd()
+	if err != nil {
+		panic(err)
+	}
+
+	repo, err := git.PlainOpen(path)
+	if err != nil {
+		panic(err)
+	}
+
+	branches, err := localBranches()
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Printf("%v\n", repo)
+	fmt.Printf("%v\n", branches)
+}
diff --git a/utils.go b/utils.go
new file mode 100644
index 0000000..254de3d
--- /dev/null
+++ b/utils.go
@@ -0,0 +1,34 @@
+package main
+
+import (
+	"os"
+	"os/exec"
+	"strings"
+)
+
+func localBranches() ([]string, error) {
+	output, err := execGit("branch", "--list")
+	if err != nil {
+		return nil, err
+	}
+	branches := []string{}
+	for _, branch := range splitLines(output) {
+		branches = append(branches, branch[2:])
+	}
+	return branches, nil
+}
+
+func execGit(args ...string) (string, error) {
+	cmd := exec.Command("git", args...)
+	cmd.Stderr = os.Stderr
+	output, err := cmd.Output()
+	return string(output), err
+}
+
+func splitLines(output string) []string {
+	output = strings.TrimSuffix(output, "\n")
+	if output == "" {
+		return []string{}
+	}
+	return strings.Split(output, "\n")
+}