diff --git a/Makefile b/Makefile
index c901e97..1c59427 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-VERSION := "2.2.1"
+VERSION := "2.3.0RC1"
 
 BUILD := $(shell git rev-parse --short HEAD)
 FLAGS	:= "-s -w -X=main.build=$(BUILD) -X=main.time=`TZ=UTC date '+%FT%TZ'` -X=main.version=$(VERSION)"
@@ -6,22 +6,27 @@ REPO := awsu
 TOKEN = $(shell cat .token)
 USER := kreuzwerker
 
-build:
-	gox -parallel=8 -osarch="darwin/amd64 linux/amd64" -ldflags $(FLAGS) -output "build/awsu-{{.OS}}-{{.Arch}}" ./bin/
-	parallel upx --best --ultra-brute --quiet {} ::: build/awsu-*-*
+build/awsu-linux-amd64:
+	@mkdir -p build
+	nice docker container run -it --rm -e "GO111MODULE=on" \
+		-v $(PWD):/go/src/github.com/kreuzwerker/awsu \
+		golang:1.11-stretch bash -c \
+		"apt-get update -q && apt-get install -qqy libpcsclite-dev && cd /go/src/github.com/kreuzwerker/awsu && go mod download && go build -o $@ -ldflags $(FLAGS) awsu.go"
+
+build/awsu-darwin-amd64:
+	@mkdir -p build
+	GO111MODULES=on nice go build -o $@ -ldflags $(FLAGS) awsu.go
+
+build: build/awsu-darwin-amd64 build/awsu-linux-amd64
+	@echo build all
 
 clean:
 	rm -rf build
 
-check:
-	ifeq ($(strip $(shell git status --porcelain 2>/dev/null)),)
-		$(error git state is not clean)
-	endif
-
-release: check clean build
+release: clean build
 	git tag $(VERSION) -f && git push --tags -f
 	github-release release --user $(USER) --repo $(REPO) --tag $(VERSION) -s $(TOKEN)
-	parallel github-release upload --user $(USER) --repo $(REPO) --tag $(VERSION) -s $(TOKEN) --name {/} --file {} ::: build/*
+	find build/* -type f -print0 -execdir github-release upload --user $(USER) --repo $(REPO) --tag $(VERSION) -s $(TOKEN) --name {} --file build/{} \;
 
 retract:
 	github-release delete --tag $(VERSION) -s $(TOKEN)
@@ -29,4 +34,4 @@ retract:
 test:
 	go list ./... | grep -v exp | xargs go test -cover
 
-.PHONY: build clean check release retract test
+.PHONY: build clean release retract test
diff --git a/bin/awsu.go b/awsu.go
similarity index 100%
rename from bin/awsu.go
rename to awsu.go