diff --git a/.gitignore b/.gitignore
index f9c99b6..29be076 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-helix
+^helix$
diff --git a/cmd/helix/main.go b/cmd/helix/main.go
index 3f0a556..b2d661b 100644
--- a/cmd/helix/main.go
+++ b/cmd/helix/main.go
@@ -5,152 +5,130 @@ import (
 	"fmt"
 	"os"
 
-	"github.com/leaanthony/clir"
 	"forge.dananglin.me.uk/code/dananglin/helix/internal/config"
 	"forge.dananglin.me.uk/code/dananglin/helix/internal/stacks"
+	"github.com/urfave/cli/v2"
 )
 
 func main() {
 	if err := run(); err != nil {
-		fmt.Printf("ERROR: %v.\n", err)
+		fmt.Printf("Error: %s.\n", err)
 		os.Exit(1)
 	}
 }
 
 func run() error {
-	helix := clir.NewCli("helix", "A CLI tool for managing your forge platform.", "v0.0.1")
-	helix.LongDescription(`Helix is a command line tool used to help manage your forge platform.
-This uses the Pulumi Automation API library to create and manage different components
-that builds your forge platform on a Linode instance.`)
+	cli.VersionPrinter = func(c *cli.Context) {
+		fmt.Printf("helix version %s\n", c.App.Version)
+	}
 
-	versionCmd := helix.NewSubCommand("version", "Print the version of this application.")
-	versionCmd.Action(versionFunc(helix.Version()))
+	stackFlag := cli.StringFlag{
+		Name:     "stack",
+		Aliases:  []string{"s"},
+		Value:    "",
+		Usage:    "the name of the stack.",
+		EnvVars:  []string{"HELIX_STACK"},
+		Required: false,
+	}
 
-	var file string
-	var stack string
+	instanceFlag := cli.StringFlag{
+		Name:     "instance",
+		Aliases:  []string{"i"},
+		Value:    "",
+		Usage:    "the `path` to your forge platform instance file.",
+		EnvVars:  []string{"HELIX_INSTANCE"},
+		Required: true,
+	}
 
+	helix := &cli.App{
+		Authors: []*cli.Author{
+			{
+				Name:  "Dan Anglin",
+				Email: "d.n.i.anglin@gmail.com",
+			},
+		},
+		Copyright: "Copyright (c) 2021 Dan Anglin",
+		Name:      "helix",
+		Usage:     "A CLI tool for managing a forge platform on a Linode instance.",
+		Flags:     []cli.Flag{&instanceFlag, &stackFlag},
+		Version:   "v0.0.1",
+		Commands: []*cli.Command{
+			{
+				Name:   "preview",
+				Usage:  "preview upcoming changes to a stack.",
+				Action: previewFunc,
+			},
+			{
+				Name:   "update",
+				Usage:  "update a stack.",
+				Action: updateFunc,
+			},
+			{
+				Name:   "destroy",
+				Usage:  "destroy a stack.",
+				Action: destroyFunc,
+			},
+		},
+	}
+
+	return helix.Run(os.Args)
+}
+
+func previewFunc(c *cli.Context) error {
 	ctx := context.Background()
 
-	updateCmd := helix.NewSubCommand("update", "Update a stack.")
-	updateCmd.Action(updateFunc(ctx, &file, &stack))
-	updateCmd.StringFlag("file", "the path to the configuration file", &file)
-	updateCmd.StringFlag("stack", "the name of the stack", &stack)
-
-	previewCmd := helix.NewSubCommand("preview", "Preview upcoming changes to a stack.")
-	previewCmd.Action(previewFunc(ctx, &file, &stack))
-	previewCmd.StringFlag("file", "the path to the configuration file", &file)
-	previewCmd.StringFlag("stack", "the name of the stack", &stack)
-
-	destroyCmd := helix.NewSubCommand("destroy", "Destroy a stack.")
-	destroyCmd.Action(destroyFunc(ctx, &file, &stack))
-	destroyCmd.StringFlag("file", "the path to the configuration file", &file)
-	destroyCmd.StringFlag("stack", "the name of the stack", &stack)
-
-	helix.DefaultCommand(versionCmd)
-
-	return helix.Run()
-}
-
-func versionFunc(version string) clir.Action {
-	return func() error {
-		fmt.Printf("helix version %s\n", version)
-
-		return nil
-	}
-}
-
-func previewFunc(ctx context.Context, file, stack *string) clir.Action {
-	flagMap := map[string]*string{
-		"file":  file,
-		"stack": stack,
+	cfg, err := config.NewConfig(c.String("instance"))
+	if err != nil {
+		return fmt.Errorf("unable to get configuration...\n%v", err)
 	}
 
-	return func() error {
-		if err := checkFlags(flagMap); err != nil {
-			return err
-		}
-
-		c, err := config.NewConfig(*flagMap["file"])
-		if err != nil {
-			return fmt.Errorf("unable to get configuration...\n%v", err)
-		}
-
-		previewer, err := stacks.NewPreviewer(ctx, *stack, c)
-		if err != nil {
-			return err
-		}
-
-		if err := previewer.Preview(ctx); err != nil {
-			return err
-		}
-
-		return nil
-	}
-}
-
-func updateFunc(ctx context.Context, file, stack *string) clir.Action {
-	flagMap := map[string]*string{
-		"file":  file,
-		"stack": stack,
+	previewer, err := stacks.NewPreviewer(ctx, c.String("stack"), cfg)
+	if err != nil {
+		return err
 	}
 
-	return func() error {
-		if err := checkFlags(flagMap); err != nil {
-			return err
-		}
-
-		c, err := config.NewConfig(*flagMap["file"])
-		if err != nil {
-			return fmt.Errorf("unable to get configuration...\n%v", err)
-		}
-
-		updater, err := stacks.NewUpdater(ctx, *stack, c)
-		if err != nil {
-			return err
-		}
-
-		if err := updater.Update(ctx); err != nil {
-			return err
-		}
-
-		return nil
-	}
-}
-
-func destroyFunc(ctx context.Context, file, stack *string) clir.Action {
-	flagMap := map[string]*string{
-		"file":  file,
-		"stack": stack,
-	}
-
-	return func() error {
-		if err := checkFlags(flagMap); err != nil {
-			return err
-		}
-
-		c, err := config.NewConfig(*flagMap["file"])
-		if err != nil {
-			return fmt.Errorf("unable to get configuration...\n%v", err)
-		}
-
-		destroyer, err := stacks.NewDestroyer(ctx, *stack, c)
-		if err != nil {
-			return err
-		}
-
-		if err := destroyer.Destroy(ctx); err != nil {
-			return err
-		}
-
-		return nil
-	}
-}
-
-func checkFlags(f map[string]*string) error {
-	for k, v := range f {
-		if len(*v) == 0 {
-			return fmt.Errorf("the value for the '%s' flag is not set", k)
-		}
+	if err := previewer.Preview(ctx); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func updateFunc(c *cli.Context) error {
+	ctx := context.Background()
+
+	cfg, err := config.NewConfig(c.String("instance"))
+	if err != nil {
+		return fmt.Errorf("unable to get configuration...\n%v", err)
+	}
+
+	updater, err := stacks.NewUpdater(ctx, c.String("stack"), cfg)
+	if err != nil {
+		return err
+	}
+
+	if err := updater.Update(ctx); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func destroyFunc(c *cli.Context) error {
+	ctx := context.Background()
+
+	cfg, err := config.NewConfig(c.String("instance"))
+	if err != nil {
+		return fmt.Errorf("unable to get configuration...\n%v", err)
+	}
+
+	destroyer, err := stacks.NewDestroyer(ctx, c.String("stack"), cfg)
+	if err != nil {
+		return err
+	}
+
+	if err := destroyer.Destroy(ctx); err != nil {
+		return err
 	}
 
 	return nil
diff --git a/go.mod b/go.mod
index 1e2efc5..747e83a 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module forge.dananglin.me.uk/code/dananglin/helix
 go 1.16
 
 require (
-	github.com/leaanthony/clir v1.0.4
 	github.com/pulumi/pulumi-docker/sdk/v3 v3.1.0
 	github.com/pulumi/pulumi/sdk/v3 v3.11.0
+	github.com/urfave/cli/v2 v2.3.0
 )
diff --git a/go.sum b/go.sum
index b1b319f..59af7ae 100644
--- a/go.sum
+++ b/go.sum
@@ -30,6 +30,8 @@ github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
+github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
+github.com/cpuguy83/go-md2man/v2 v2.0.0 h1:EoUDS0afbrsXAZ9YQ9jdu/mZ2sXgT1/2yyNng4PGlyM=
 github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
@@ -123,8 +125,6 @@ github.com/kr/pty v1.1.8/go.mod h1:O1sed60cT9XZ5uDucP5qwvh+TE3NnUj51EiZO/lmSfw=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
-github.com/leaanthony/clir v1.0.4 h1:Dov2y9zWJmZr7CjaCe86lKa4b5CSxskGAt2yBkoDyiU=
-github.com/leaanthony/clir v1.0.4/go.mod h1:k/RBkdkFl18xkkACMCLt09bhiZnrGORoxmomeMvDpE0=
 github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
 github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
 github.com/mattn/go-colorable v0.1.6 h1:6Su7aK7lXmJ/U79bYtBjLNaha4Fs1Rg9plHpcH+vvnE=
@@ -173,12 +173,14 @@ github.com/pulumi/pulumi/sdk/v3 v3.0.0/go.mod h1:GBHyQ7awNQSRmiKp/p8kIKrGrMOZeA/
 github.com/pulumi/pulumi/sdk/v3 v3.11.0 h1:XljryA45etplc9WfmTm8/DKi5Evx94j0qQ7ovSWL/To=
 github.com/pulumi/pulumi/sdk/v3 v3.11.0/go.mod h1:bxxmONw/K6M4KHRKWTwP/u77JbqDFnt96p0nSsrsHnQ=
 github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
+github.com/russross/blackfriday/v2 v2.0.1 h1:lPqVAte+HuHNfhJ/0LC98ESWRz8afy9tM/0RK8m9o+Q=
 github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/sabhiram/go-gitignore v0.0.0-20180611051255-d3107576ba94 h1:G04eS0JkAIVZfaJLjla9dNxkJCPiKIGZlw9AfOhzOD0=
 github.com/sabhiram/go-gitignore v0.0.0-20180611051255-d3107576ba94/go.mod h1:b18R55ulyQ/h3RaWyloPyER7fWQVZvimKKhnI5OfrJQ=
 github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAmXWZgo=
 github.com/sergi/go-diff v1.1.0 h1:we8PVUC3FE2uYfodKH/nBHMSetSfHDR6scGdBi+erh0=
 github.com/sergi/go-diff v1.1.0/go.mod h1:STckp+ISIX8hZLjrqAeVduY0gWCT9IjLuqbuNXdaHfM=
+github.com/shurcooL/sanitized_anchor_name v1.0.0 h1:PdmoCO6wvbs+7yrJyMORt4/BmY5IYyJwS/kOiWx8mHo=
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
@@ -214,6 +216,8 @@ github.com/uber/jaeger-client-go v2.22.1+incompatible/go.mod h1:WVhlPFC8FDjOFMMW
 github.com/uber/jaeger-lib v2.2.0+incompatible h1:MxZXOiR2JuoANZ3J6DE/U0kSFv/eJ/GfSYVCjK7dyaw=
 github.com/uber/jaeger-lib v2.2.0+incompatible/go.mod h1:ComeNDZlWwrWnDv8aPp0Ba6+uUTzImX/AauajbLI56U=
 github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=
+github.com/urfave/cli/v2 v2.3.0 h1:qph92Y649prgesehzOrQjdWyxFOp/QVM+6imKHad91M=
+github.com/urfave/cli/v2 v2.3.0/go.mod h1:LJmUH05zAU44vOAcrfzZQKsZbVcdbOG8rtL3/XcUArI=
 github.com/xanzy/ssh-agent v0.2.1 h1:TCbipTQL2JiiCprBWx9frJ2eJlCYT00NmctrHxVAr70=
 github.com/xanzy/ssh-agent v0.2.1/go.mod h1:mLlQY/MoOhWBj+gOGMQkOeiEvkx+8pJSI+0Bx9h2kr4=
 github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
@@ -345,6 +349,7 @@ gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRN
 gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=