Make release from nix-build result

Makefile

@@ -1,15 +1,18 @@
 SRC=src/index.js src/bare-agent.js src/index.html
 DID_SRC=src/ledger.did src/governance.did
-#NNS_IFACES ?= $(shell nix-prefetch-url --print-path https://codeload.github.com/dfinity/nns-ifaces/tar.gz/refs/tags/v0.8.1 | tail -n1)
+NIX_SRC=default.nix ic-qr-scanner.nix node-env.nix node-packages.nix shell.nix
+NPM_SRC=webpack.config.js src/simple.min.css
+ALL_SRC=$(SRC) $(DID_SRC) $(NIX_SRC) $(NPM_SRC)
 
 all: fmt build
 
 build: dist/main.bundle.js
 
+#NNS_IFACES ?= $(shell nix-prefetch-url --print-path https://codeload.github.com/dfinity/nns-ifaces/tar.gz/refs/tags/v0.8.1 | tail -n1)
 #$(DID_SRC) &:
 #	cd src && cat $(NNS_IFACES) |tar zx --wildcards --strip-components=1 */ledger.did */governance.did
 
-dist/index.html dist/main.bundle.js &: $(SRC) $(DID_SRC) webpack.config.js src/simple.min.css
+dist/index.html dist/main.bundle.js &: $(SRC) $(DID_SRC) $(NPM_SRC)
 	npm run-script build
 
 fmt: $(SRC) webpack.config.js
@@ -19,14 +22,21 @@ dist/monic.wasm: dist/index.html
 	cd dist && sh ../monic.sh index.html
 	sha256sum dist/index.html dist/monic.wasm
 
+install: dist/monic.wasm
+	install -D dist/monic.did ${out}/bin/ic-qr-scanner.did
+	install -D dist/monic.wasm ${out}/bin/ic-qr-scanner.wasm
+
 dist/canister_ids.json: canister_ids.json
 	cd dist && ln -s ../canister_ids.json .
 
-release: dist/monic.wasm dist/canister_ids.json
-	cd dist && dfx deploy --network=ic
+result : $(ALL_SRC)
+	nix-build ic-qr-scanner.nix
 
-install: dist/monic.wasm
-	install -D dist/monic.wasm ${out}/bin/ic-qr-scanner.wasm
+dfx.json:
+	echo '{"canisters":{"monic":{"type":"custom","candid":"result/bin/ic-qr-scanner.did","wasm":"result/bin/ic-qr-scanner.wasm","build":""}}}' > dfx.json
+
+release: result dfx.json
+	dfx deploy --network=ic
 
 clean:
 	rm -rf dist