diff --git a/go.mod b/go.mod
index 4fb78a8..090343a 100644
--- a/go.mod
+++ b/go.mod
@@ -7,6 +7,7 @@ replace code.dumpstack.io/tools/out-of-tree/qemu => ./qemu
 replace code.dumpstack.io/tools/out-of-tree/config => ./config
 
 require (
+	github.com/BurntSushi/toml v1.2.1 // indirect
 	github.com/alecthomas/kong v0.7.1
 	github.com/go-git/go-git/v5 v5.6.1
 	github.com/kylelemons/godebug v1.1.0 // indirect
@@ -14,6 +15,7 @@ require (
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/naoina/go-stringutil v0.1.0 // indirect
 	github.com/naoina/toml v0.1.1
+	github.com/natefinch/lumberjack v2.0.0+incompatible
 	github.com/olekukonko/tablewriter v0.0.5
 	github.com/otiai10/copy v1.9.0
 	github.com/remeh/sizedwaitgroup v1.0.0
@@ -21,4 +23,5 @@ require (
 	github.com/zcalusic/sysinfo v0.9.5
 	golang.org/x/crypto v0.7.0
 	gopkg.in/logrusorgru/aurora.v2 v2.0.3
+	gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
 )
diff --git a/go.sum b/go.sum
index f452a86..70cb9c5 100644
--- a/go.sum
+++ b/go.sum
@@ -1,3 +1,5 @@
+github.com/BurntSushi/toml v1.2.1 h1:9F2/+DoOYIOksmaJFPw1tGFy1eDnIJXg+UHjuD8lTak=
+github.com/BurntSushi/toml v1.2.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
 github.com/Microsoft/go-winio v0.5.2 h1:a9IhgEQBCUEk6QCdml9CiJGhAws+YwffDHEMp1VMrpA=
 github.com/Microsoft/go-winio v0.5.2/go.mod h1:WpS1mjBmmwHBEWmogvA2mj8546UReBk4v8QkMxJ6pZY=
 github.com/ProtonMail/go-crypto v0.0.0-20230217124315-7d5c6f04bbb8 h1:wPbRQzjjwFc0ih8puEVAOFGELsn1zoIIYdxvML7mDxA=
@@ -73,6 +75,8 @@ github.com/naoina/go-stringutil v0.1.0 h1:rCUeRUHjBjGTSHl0VC00jUPLz8/F9dDzYI70Hz
 github.com/naoina/go-stringutil v0.1.0/go.mod h1:XJ2SJL9jCtBh+P9q5btrd/Ylo8XwT/h1USek5+NqSA0=
 github.com/naoina/toml v0.1.1 h1:PT/lllxVVN0gzzSqSlHEmP8MJB4MY2U7STGxiouV4X8=
 github.com/naoina/toml v0.1.1/go.mod h1:NBIhNtsFMo3G2szEBne+bO4gS192HuIYRqfvOWb4i1E=
+github.com/natefinch/lumberjack v2.0.0+incompatible h1:4QJd3OLAMgj7ph+yZTuX13Ld4UpgHp07nNdFX7mqFfM=
+github.com/natefinch/lumberjack v2.0.0+incompatible/go.mod h1:Wi9p2TTF5DG5oU+6YfsmYQpsTIOm0B1VNzQg9Mw6nPk=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
 github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec=
 github.com/olekukonko/tablewriter v0.0.5/go.mod h1:hPp6KlRPjbx+hW8ykQs1w3UBbZlj6HuIJcUGPhkA7kY=
@@ -185,9 +189,12 @@ gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntN
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/logrusorgru/aurora.v2 v2.0.3 h1:5Hr76hqgwx9PednedYf5Q1dBfiPMZ2IgExR7u3tNXIE=
 gopkg.in/logrusorgru/aurora.v2 v2.0.3/go.mod h1:Wm+IEn1fgFp8E2paL93oFVrHZW4toMKARNE85fDY5w8=
+gopkg.in/natefinch/lumberjack.v2 v2.2.1 h1:bBRl1b0OH9s/DuPhuXpNl+VtCaJXFZ5/uEFST95x9zc=
+gopkg.in/natefinch/lumberjack.v2 v2.2.1/go.mod h1:YD8tP3GAjkrDg1eZH7EGmyESg/lsYskCTPBJVb9jqSc=
 gopkg.in/warnings.v0 v0.1.2 h1:wFXVbFY8DY5/xOe1ECiWdKCzZlxgshcYVNkBHstARME=
 gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0 h1:hjy8E9ON/egN1tAYqKb61G10WtihqetD4sz2H+8nIeA=
diff --git a/main.go b/main.go
index 1c40f00..0d8f27b 100644
--- a/main.go
+++ b/main.go
@@ -6,12 +6,15 @@ package main
 
 import (
 	"fmt"
+	"io"
 	"math/rand"
 	"os"
+	"os/user"
 	"runtime/debug"
 	"strconv"
 	"time"
 
+	"github.com/natefinch/lumberjack"
 	"github.com/rs/zerolog"
 	"github.com/rs/zerolog/log"
 
@@ -47,8 +50,6 @@ type LogLevelFlag string
 func (loglevel LogLevelFlag) AfterApply() error {
 	switch loglevel {
 	case "debug":
-		zerolog.SetGlobalLevel(zerolog.DebugLevel)
-
 		zerolog.CallerMarshalFunc = func(pc uintptr, file string, line int) string {
 			short := file
 			for i := len(file) - 1; i > 0; i-- {
@@ -61,12 +62,6 @@ func (loglevel LogLevelFlag) AfterApply() error {
 			return file + ":" + strconv.Itoa(line)
 		}
 		log.Logger = log.With().Caller().Logger()
-	case "info":
-		zerolog.SetGlobalLevel(zerolog.InfoLevel)
-	case "warn":
-		zerolog.SetGlobalLevel(zerolog.WarnLevel)
-	case "error":
-		zerolog.SetGlobalLevel(zerolog.ErrorLevel)
 	}
 	return nil
 }
@@ -81,9 +76,19 @@ func (v VersionFlag) BeforeApply(app *kong.Kong, vars kong.Vars) error {
 	return nil
 }
 
-func main() {
-	log.Logger = log.Output(zerolog.ConsoleWriter{Out: os.Stderr})
+type LevelWriter struct {
+	io.Writer
+	Level zerolog.Level
+}
 
+func (lw *LevelWriter) WriteLevel(l zerolog.Level, p []byte) (n int, err error) {
+	if l >= lw.Level {
+		return lw.Writer.Write(p)
+	}
+	return len(p), nil
+}
+
+func main() {
 	rand.Seed(time.Now().UnixNano())
 
 	cli := CLI{}
@@ -99,11 +104,47 @@ func main() {
 		},
 	)
 
+	var loglevel zerolog.Level
+	switch cli.LogLevel {
+	case "debug":
+		loglevel = zerolog.DebugLevel
+	case "info":
+		loglevel = zerolog.InfoLevel
+	case "warn":
+		loglevel = zerolog.WarnLevel
+	case "error":
+		loglevel = zerolog.ErrorLevel
+	}
+
+	usr, err := user.Current()
+	if err != nil {
+		return
+	}
+
+	log.Logger = log.Output(zerolog.MultiLevelWriter(
+		&LevelWriter{Writer: zerolog.NewConsoleWriter(
+			func(w *zerolog.ConsoleWriter) {
+				w.Out = os.Stderr
+			},
+		),
+			Level: loglevel,
+		},
+		&LevelWriter{Writer: &lumberjack.Logger{
+			Filename: usr.HomeDir + "/.out-of-tree/logs/out-of-tree.log",
+		},
+			Level: zerolog.DebugLevel,
+		},
+	))
+
+	log.Debug().Msg("start out-of-tree")
+	log.Debug().Msgf("%v", os.Args)
+	log.Debug().Msgf("%v", cli)
+
 	if buildInfo, ok := debug.ReadBuildInfo(); ok {
 		log.Debug().Msgf("%v", buildInfo.GoVersion)
 		log.Debug().Msgf("%v", buildInfo.Settings)
 	}
 
-	err := ctx.Run(&cli.Globals)
+	err = ctx.Run(&cli.Globals)
 	ctx.FatalIfErrorf(err)
 }