diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
new file mode 100644
index 0000000..5be54da
--- /dev/null
+++ b/.gitea/workflows/ci.yml
@@ -0,0 +1,27 @@
+name: CI
+
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version: '1.24'
+          cache: true
+
+      - name: Vet
+        run: go vet ./...
+
+      - name: Test
+        run: go test -v -race -coverprofile=coverage.out ./...
+
+      - name: Build
+        run: go build -v ./...
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..db817b5
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,19 @@
+BINARY_NAME=exploredns
+BUILD_DIR=bin
+GO=go
+GOFLAGS=-v
+
+.PHONY: build test lint clean
+
+build:
+	$(GO) build $(GOFLAGS) -o $(BUILD_DIR)/$(BINARY_NAME) ./cmd/exploredns
+
+test:
+	$(GO) test -v -race -coverprofile=coverage.out ./...
+
+lint:
+	$(GO) vet ./...
+
+clean:
+	rm -rf $(BUILD_DIR)
+	rm -f coverage.out
diff --git a/README.md b/README.md
index f2b2511..107c448 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,44 @@
 # ExploreDNS
 
+DNS reconnaissance and exploration tool.
+
+## Build
+
+```sh
+go build -o bin/exploredns ./cmd/exploredns
+```
+
+Or use the Makefile:
+
+```sh
+make build
+```
+
+## Usage
+
+```sh
+./bin/exploredns <domain>
+```
+
+## Development
+
+```sh
+make test    # run tests
+make lint    # run go vet
+make clean   # remove build artifacts
+```
+
+## Project Structure
+
+```
+cmd/exploredns/        CLI entry point
+internal/dns/          DNS query operations
+internal/traverse/     DNS tree traversal
+internal/fingerprint/  DNS server fingerprinting
+internal/output/       Result formatting and output
+internal/config/       Configuration management
+```
+
+## License
+
+MIT
diff --git a/cmd/exploredns/main.go b/cmd/exploredns/main.go
new file mode 100644
index 0000000..cadef08
--- /dev/null
+++ b/cmd/exploredns/main.go
@@ -0,0 +1,26 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+)
+
+func main() {
+	flag.Usage = func() {
+		fmt.Fprintf(os.Stderr, "ExploreDNS - DNS reconnaissance and exploration tool\n\n")
+		fmt.Fprintf(os.Stderr, "Usage:\n")
+		fmt.Fprintf(os.Stderr, "  exploredns [flags] <domain>\n\n")
+		fmt.Fprintf(os.Stderr, "Flags:\n")
+		flag.PrintDefaults()
+	}
+
+	flag.Parse()
+
+	if flag.NArg() == 0 {
+		flag.Usage()
+		os.Exit(1)
+	}
+
+	fmt.Printf("ExploreDNS - exploring: %s\n", flag.Arg(0))
+}
diff --git a/internal/config/config.go b/internal/config/config.go
new file mode 100644
index 0000000..d912156
--- /dev/null
+++ b/internal/config/config.go
@@ -0,0 +1 @@
+package config
diff --git a/internal/dns/dns.go b/internal/dns/dns.go
new file mode 100644
index 0000000..1ffe03d
--- /dev/null
+++ b/internal/dns/dns.go
@@ -0,0 +1 @@
+package dns
diff --git a/internal/fingerprint/fingerprint.go b/internal/fingerprint/fingerprint.go
new file mode 100644
index 0000000..f1b53d1
--- /dev/null
+++ b/internal/fingerprint/fingerprint.go
@@ -0,0 +1 @@
+package fingerprint
diff --git a/internal/output/output.go b/internal/output/output.go
new file mode 100644
index 0000000..ad89311
--- /dev/null
+++ b/internal/output/output.go
@@ -0,0 +1 @@
+package output
diff --git a/internal/traverse/traverse.go b/internal/traverse/traverse.go
new file mode 100644
index 0000000..5550fe0
--- /dev/null
+++ b/internal/traverse/traverse.go
@@ -0,0 +1 @@
+package traverse