@@ -0,0 +1,52 @@
+package main
+
+import (
+	"fmt"
+	"io/fs"
+	"log"
+	"log/slog"
+	"os"
+
+	"github.com/BurntSushi/toml"
+	"github.com/ardanlabs/conf/v3"
+	"github.com/pkg/errors"
+)
+
+func main() {
+	if os.Getenv("DEBUG") != "" {
+		slog.SetLogLoggerLevel(slog.LevelDebug)
+	}
+	slog.Debug("starting build process")
+
+	ioConfig := IOConfig{}
+	if help, err := conf.Parse("", &ioConfig); err != nil {
+		if errors.Is(err, conf.ErrHelpWanted) {
+			fmt.Println(help)
+			os.Exit(1)
+		}
+		log.Panicf("parsing I/O configuration: %v", err)
+	}
+
+	if ioConfig.Source != "." {
+		err := os.Chdir(ioConfig.Source)
+		if err != nil {
+			log.Panic("could not change to source directory")
+		}
+	}
+
+	if err := buildSite(ioConfig); err != nil {
+		switch cause := errors.Cause(err).(type) {
+		case *fs.PathError:
+			slog.Info("pathError")
+			slog.Error(fmt.Sprintf("%s", err))
+		case toml.ParseError:
+			slog.Info("parseError")
+			slog.Error(fmt.Sprintf("%s", err))
+		default:
+			slog.Info("other")
+			slog.Error(fmt.Sprintf("cause:%+v", errors.Cause(cause)))
+			slog.Error(fmt.Sprintf("%+v", cause))
+		}
+		os.Exit(1)
+	}
+}