diff --git a/.golangci.yaml b/.golangci.yaml
index fe2c6f6..970bbcd 100644
--- a/.golangci.yaml
+++ b/.golangci.yaml
@@ -35,7 +35,7 @@ issues:
       linters: [ errcheck ]
     # Exclude certain revive standards from being applied in tests.
     - path: "_test\\.go"
-      text: "^(max-public-structs|function-length|cognitive-complexity|unchecked-type-assertion):"
+      text: "^(max-public-structs|function-length|cognitive-complexity):"
       linters: [ revive ]
     # Exclude dots in unfinished thoughts.
     - source: "(noinspection|TODO)"
@@ -160,6 +160,9 @@ linters-settings:
       # Fails to disable writers that actually cannot return errors.
       - name: unhandled-error
         disabled: true
+      # Fails to detect and exclude type safe usages of type assertions.
+      - name: unchecked-type-assertion
+        disabled: true
       # Fails to restrict sufficiently in switches with numeric values.
       - name: add-constant
         disabled: true
diff --git a/Makefile b/Makefile
index 1d245ff..0c6489b 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,9 @@ endif
 # request targets, while the single target can be used to define the
 # precondition of custom target.
 .PHONY: $(TARGETS) $(addprefix target/,$(TARGETS))
-$(TARGETS):; $(GOBIN)/go-make $(MAKEFLAGS) $(MAKECMDGOALS);
+$(TARGETS):
+	@PARAMS=$(MAKECMDGOALS) $(MAKECMDGOALS :=); \
+	$(GOBIN)/go-make $(MAKEFLAGS) $${PARAMS};
 $(addprefix target/,$(TARGETS)): target/%:
 	$(GOBIN)/go-make $(MAKEFLAGS) $*;
 
diff --git a/Makefile.base b/Makefile.base
index 9c93af4..2c5de88 100644
--- a/Makefile.base
+++ b/Makefile.base
@@ -101,6 +101,7 @@ go-pkg = $(shell awk -v mode="$(1)" -v filter="$(3)" -v not="$(4)" ' \
 	}' <<<"$(2)")
 
 
+BROWSER ?= xdg-open
 VERSION ?= snapshot
 ifeq ($(wildcard VERSION),VERSION)
   BUILD_VERSION := v$(shell cat VERSION)
@@ -205,8 +206,9 @@ run-vars-image = $(call run-vars-docker)
 run-aws-setup = true
 
 ifneq ("$(wildcard Makefile.defs)","")
-  $(info info: please define custom functions in Makefile.defs)
   include Makefile.defs
+else
+  $(warning info: please define custom functions in Makefile.defs)
 endif
 
 
@@ -514,10 +516,12 @@ $(TARGETS_UNINSTALL): uninstall-%:; rm -f $(GOBIN)/$*;
 #@ initialize the project to prepare it for building.
 init: $(TARGETS_INIT)
 #@ initialize the go module and package dependencies.
-init-go: go.mod go.sum
+init-go: go.sum
+go.sum: go.mod
+	go mod tidy -go=$(GOVERSION);
 	go mod download;
-go.mod go.sum:
-	go mod init "$(REPOSITORY)"
+go.mod:
+	go mod init "$(REPOSITORY)";
 #@ initialize the pre-commit hook.
 init-hooks: .git/hooks/pre-commit
 .git/hooks/pre-commit:
diff --git a/Makefile.defs b/Makefile.defs
new file mode 100644
index 0000000..8ac3ad0
--- /dev/null
+++ b/Makefile.defs
@@ -0,0 +1,24 @@
+# Setup environment for all run-targets (to be modified)
+define run-setup
+  true
+endef
+
+# Define variables for all run-targets (to be modified)
+define run-vars
+
+endef
+
+# Define variables for local run-targets (to be modified)
+define run-vars-local
+
+endef
+
+# Define variables for image run-targets (to be modified)
+define run-vars-image
+
+endef
+
+# Define aws localstack setup (to be modified).
+define run-aws-setup
+  true
+endef
diff --git a/Makefile.vars b/Makefile.vars
index b1d9e25..8017797 100644
--- a/Makefile.vars
+++ b/Makefile.vars
@@ -9,11 +9,11 @@ CODACY_API_BASE_URL := https://api.codacy.com
 #CODACY_CONTINUE := true
 
 # Setup required targets before testing (default: <empty>).
-#TEST_DEPS := run-db
+#TEST_DEPS := run-db run-aws
 # Setup required targets before running commands (default: <empty>).
-#RUN_DEPS := run-db
+#RUN_DEPS := run-db run-aws
 # Setup required aws services for testing (default: <empty>).
-#AWS_SERVICES :=
+#AWS_SERVICES := s3 sqs
 
 # Setup when to push images (default: pulls [never, pulls, merges])
 IMAGE_PUSH ?= never
diff --git a/VERSION b/VERSION
index 1750564..5a5831a 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.0.6
+0.0.7
diff --git a/internal/make/fixtures/targets-trace.err b/internal/make/fixtures/targets-trace.err
index d0f0d28..dbf319d 100644
--- a/internal/make/fixtures/targets-trace.err
+++ b/internal/make/fixtures/targets-trace.err
@@ -2,3 +2,4 @@ call: targets --trace
 info: {"path":"github.com/tkrop/go-make","repo":"git@github.com:tkrop/go-make","build":"0001-01-01T00:00:00Z","commit":"0001-01-01T00:00:00Z","dirty":true,"go":"{{GOVERSION}}","platform":"{{PLATFORM}}","compiler":"{{COMPILER}}"}
 exec: make --file Makefile.base targets --trace [go-make/internal/make]
 Makefile.base:18: info: please customize variables in Makefile.vars
+Makefile.base:211: info: please define custom functions in Makefile.defs
diff --git a/internal/make/fixtures/targets-trace.out b/internal/make/fixtures/targets-trace.out
index 23ec485..d26cc29 100644
--- a/internal/make/fixtures/targets-trace.out
+++ b/internal/make/fixtures/targets-trace.out
@@ -1,4 +1,4 @@
-Makefile.base:383: target 'targets' does not exist
+Makefile.base:385: target 'targets' does not exist
 make --no-builtin-rules --no-builtin-variables --print-data-base \
   --question --makefile=Makefile.base 2>/dev/null | \
   if [ "" != "raw" ]; then awk -v RS= -F: ' \
diff --git a/internal/make/fixtures/targets.err b/internal/make/fixtures/targets.err
index 74c3efb..50784ee 100644
--- a/internal/make/fixtures/targets.err
+++ b/internal/make/fixtures/targets.err
@@ -1 +1,2 @@
 Makefile.base:18: info: please customize variables in Makefile.vars
+Makefile.base:211: info: please define custom functions in Makefile.defs