Build on self hosted runner

.github/workflows/main.yml

@@ -10,9 +10,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
-    env:
-      DOCKER_TARGET_PLATFORM: linux/arm/v7
+    runs-on: self-hosted
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:

Dockerfile

@@ -8,9 +8,6 @@ RUN go mod download
 RUN apk update
 
 RUN apk add protobuf
-ENV GOOS=linux
-ENV GOARCH=arm
-ENV GOARM=7
 RUN go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.26
 RUN go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.1
 COPY . .