diff --git a/Makefile b/Makefile
index ed39aa2d2..c049f9068 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@ DOCKER_IMAGE ?=	moul/depviz
 
 all: test install
 
--include rules.mk
+include rules.mk
 
 .PHONY: update_examples
 update_examples:
diff --git a/go.mod b/go.mod
index 7ad7cd562..d30cda865 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,6 @@ module moul.io/depviz
 
 require (
 	cloud.google.com/go v0.44.3 // indirect
-	github.com/awalterschulze/gographviz v0.0.0-20190624143730-fa59802746ab // indirect
 	github.com/brianloveswords/airtable v0.0.0-20180329193050-a39294038dd9
 	github.com/denisenkom/go-mssqldb v0.0.0-20190820223206-44cdfe8d8ba9 // indirect
 	github.com/go-chi/chi v4.0.2+incompatible
@@ -21,20 +20,22 @@ require (
 	github.com/spf13/afero v1.2.2 // indirect
 	github.com/spf13/cobra v0.0.5
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
-	github.com/spf13/pflag v1.0.3
+	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.4.0
 	github.com/stretchr/testify v1.4.0 // indirect
 	github.com/xanzy/go-gitlab v0.20.1
 	go.uber.org/ratelimit v0.1.0 // indirect
 	go.uber.org/zap v1.10.0
 	golang.org/x/crypto v0.0.0-20190829043050-9756ffdc2472 // indirect
-	golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297 // indirect
-	golang.org/x/oauth2 v0.0.0-20190624143730-0f29369cfe45
-	golang.org/x/sys v0.0.0-20190830142957-1e83adbbebd0 // indirect
+	golang.org/x/net v0.0.0-20190918130420-a8b05e9114ab // indirect
+	golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
+	golang.org/x/sys v0.0.0-20190919044723-0c1ff786ef13 // indirect
 	google.golang.org/appengine v1.6.2 // indirect
 	gopkg.in/yaml.v2 v2.2.2
 	moul.io/graphman v1.5.0
-	moul.io/graphman/viz v0.0.0-20190830152634-1bb4245b0456
+	moul.io/graphman/viz v0.0.0-20190903195621-20ea6b22fdd7
 	moul.io/multipmuri v1.8.0
 	moul.io/zapgorm v0.0.0-20190706070406-8138918b527b
 )
+
+go 1.13
diff --git a/go.sum b/go.sum
index 8ca46c306..a0f915bc4 100644
--- a/go.sum
+++ b/go.sum
@@ -17,6 +17,7 @@ github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuy
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
+github.com/awalterschulze/gographviz v0.0.0-20190522210029-fa59802746ab h1:+cdNqtOJWjvepyhxy23G7z7vmpYCoC65AP0nqi1f53s=
 github.com/awalterschulze/gographviz v0.0.0-20190522210029-fa59802746ab/go.mod h1:GEV5wmg4YquNw7v1kkyoX9etIk8yVmXj+AkDHuuETHs=
 github.com/awalterschulze/gographviz v0.0.0-20190624143730-fa59802746ab h1:FkC/0IANqBxqtPi5DARGZu2mVNREkrh0gwJP6TxPYok=
 github.com/awalterschulze/gographviz v0.0.0-20190624143730-fa59802746ab/go.mod h1:GEV5wmg4YquNw7v1kkyoX9etIk8yVmXj+AkDHuuETHs=
@@ -203,6 +204,8 @@ github.com/spf13/jwalterweatherman v1.1.0 h1:ue6voC5bR5F8YxI5S67j9i582FU4Qvo2bmq
 github.com/spf13/jwalterweatherman v1.1.0/go.mod h1:aNWZUN0dPAAO/Ljvb5BEdw96iTZ0EXowPYD95IqWIGo=
 github.com/spf13/pflag v1.0.3 h1:zPAT6CGy6wXeQ7NtTnaTerfKOsV6V6F8agHXFiazDkg=
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
+github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
+github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/spf13/viper v1.3.2 h1:VUFqw5KcqRf7i70GOzW7N+Q7+gxVBkSSqiXB12+JQ4M=
 github.com/spf13/viper v1.3.2/go.mod h1:ZiWeW+zYFKm7srdB9IoDzzZXaJaI5eL9QjNiN/DMA2s=
 github.com/spf13/viper v1.4.0 h1:yXHLWeravcrgGyFSyCgdYpXQ9dR9c/WED3pg1RhxqEU=
@@ -272,9 +275,12 @@ golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297 h1:k7pJ2yAPLPgbskkFdhRCsA77k2fySZ1zf2zCjvQCiIM=
 golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20190918130420-a8b05e9114ab h1:h5tBRKZ1aY/bo6GNqe/4zWC8GkaLOFQ5wPKIOQ0i2sA=
+golang.org/x/net v0.0.0-20190918130420-a8b05e9114ab/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181106182150-f42d05182288/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
+golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 h1:SVwTIAaPC2U/AvvLNZ2a7OVsmBpC8L5BlwK1whH3hm0=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190624143730-0f29369cfe45 h1:RYOrUh82yhnJB1aWK1/xq+G1yJQ/jQEbRxPawl0c8B4=
 golang.org/x/oauth2 v0.0.0-20190624143730-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -301,6 +307,8 @@ golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190830142957-1e83adbbebd0 h1:7z820YPX9pxWR59qM7BE5+fglp4D/mKqAwCvGt11b+8=
 golang.org/x/sys v0.0.0-20190830142957-1e83adbbebd0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190919044723-0c1ff786ef13 h1:/zi0zzlPHWXYXrO1LjNRByFu8sdGgCkj2JLDdBIB84k=
+golang.org/x/sys v0.0.0-20190919044723-0c1ff786ef13/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2 h1:z99zHgr7hKfrUcX/KsoJk5FJfjTceCKIp96+biqP4To=
@@ -367,6 +375,8 @@ moul.io/graphman v1.5.0 h1:m2kVB06uI82UEEWSOtR58sKwB2yahhY4eDu3wmIDTCE=
 moul.io/graphman v1.5.0/go.mod h1:A34tMYPJRjkFBWPIsmrVFb481r+dsPyP2Ee83RuObwI=
 moul.io/graphman/viz v0.0.0-20190830152634-1bb4245b0456 h1:hZfuflz4kSOV21yDBTqtQdgB2GHitLfaCb8cS7tD4xs=
 moul.io/graphman/viz v0.0.0-20190830152634-1bb4245b0456/go.mod h1:TSPOyvLb1/0QPhaOzlW936GMtFxpgDeLGAXPjkBJNxM=
+moul.io/graphman/viz v0.0.0-20190903195621-20ea6b22fdd7 h1:WZWbin5zIOG7tfME17PS0z7V5NO2L7ebrQGJl8OVNhs=
+moul.io/graphman/viz v0.0.0-20190903195621-20ea6b22fdd7/go.mod h1:TSPOyvLb1/0QPhaOzlW936GMtFxpgDeLGAXPjkBJNxM=
 moul.io/multipmuri v1.8.0 h1:KOQ/Nu9pe+5HyjJ8XUO0wxcGvLgrOo4bkxYyb9G0ZnY=
 moul.io/multipmuri v1.8.0/go.mod h1:xTE1AUMMTNRFyNRNwnM9E7UgOalny3SNb3B4h5CYv4Q=
 moul.io/zapgorm v0.0.0-20190706070406-8138918b527b h1:7A2qUMck+Ikop+5+Ar6wyweFOHTwXEgHbNayY2mEB6Q=
diff --git a/rules.mk b/rules.mk
index 430aa70c1..c2dee9984 100644
--- a/rules.mk
+++ b/rules.mk
@@ -23,6 +23,8 @@
 # ||  |       |  |    | |                   /_/_/_/\___/\_,_/_/  |
 # +--------------------------------------------------------------+
 
+all: help
+
 ##
 ## rules.mk
 ##
@@ -47,6 +49,11 @@ GENERATE_STEPS += generate.authors
 ## Golang
 ##
 
+ifndef GOPKG
+ifneq ($(wildcard go.mod),)
+GOPKG = $(shell sed '/module/!d;s/^omdule\ //' go.mod)
+endif
+endif
 ifdef GOPKG
 GO ?= go
 
@@ -118,6 +125,11 @@ endif
 ## Node
 ##
 
+ifndef NPM_PACKAGES
+ifneq ($(wildcard package.json),)
+NPM_PACKAGES = .
+endif
+endif
 ifdef NPM_PACKAGES
 .PHONY: npm.publish
 npm.publish:
@@ -135,7 +147,13 @@ endif
 ## Docker
 ##
 
+ifndef DOCKER_IMAGE
+ifneq ($(wildcard Dockerfile),)
+DOCKER_IMAGE = $(notdir $(PWD))
+endif
+endif
 ifdef DOCKER_IMAGE
+ifneq ($(DOCKER_IMAGE),none)
 .PHONY: docker.build
 docker.build:
 	docker build \
@@ -146,6 +164,7 @@ docker.build:
 
 BUILD_STEPS += docker.build
 endif
+endif
 
 ##
 ## Common
@@ -200,3 +219,17 @@ ifdef GENERATE_STEPS
 .PHONY: generate
 generate: $(GENERATE_STEPS)
 endif
+
+.PHONY: help
+help:
+	@echo "General commands:"
+	@[ "$(BUILD_STEPS)" != "" ]     && echo "  build"     || true
+	@[ "$(BUMPDEPS_STEPS)" != "" ]  && echo "  bumpdeps"  || true
+	@[ "$(GENERATE_STEPS)" != "" ]  && echo "  generate"  || true
+	@[ "$(INSTALL_STEPS)" != "" ]   && echo "  install"   || true
+	@[ "$(LINT_STEPS)" != "" ]      && echo "  lint"      || true
+	@[ "$(RELEASE_STEPS)" != "" ]   && echo "  release"   || true
+	@[ "$(TEST_STEPS)" != "" ]      && echo "  test"      || true
+	@[ "$(TIDY_STEPS)" != "" ]      && echo "  tidy"      || true
+	@[ "$(UNITTEST_STEPS)" != "" ]  && echo "  unittest"  || true
+	@# FIXME: list other commands
diff --git a/tools/go.mod b/tools/go.mod
index f4061a207..e21052a85 100644
--- a/tools/go.mod
+++ b/tools/go.mod
@@ -7,7 +7,7 @@ require (
 	github.com/golang/protobuf v1.3.2 // indirect
 	github.com/google/go-github v17.0.0+incompatible
 	github.com/google/go-querystring v1.0.0 // indirect
-	golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297 // indirect
+	golang.org/x/net v0.0.0-20190918130420-a8b05e9114ab // indirect
 	golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
 	google.golang.org/appengine v1.6.2 // indirect
 )
diff --git a/tools/go.sum b/tools/go.sum
index 0ec14b678..8fc354679 100644
--- a/tools/go.sum
+++ b/tools/go.sum
@@ -20,6 +20,8 @@ golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
 golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297 h1:k7pJ2yAPLPgbskkFdhRCsA77k2fySZ1zf2zCjvQCiIM=
 golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20190918130420-a8b05e9114ab h1:h5tBRKZ1aY/bo6GNqe/4zWC8GkaLOFQ5wPKIOQ0i2sA=
+golang.org/x/net v0.0.0-20190918130420-a8b05e9114ab/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 h1:SVwTIAaPC2U/AvvLNZ2a7OVsmBpC8L5BlwK1whH3hm0=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4 h1:YUO/7uOKsKeq9UokNS62b8FYywz3ker1l1vDZRCRefw=