Remove Buildarch from ldflags, use runtime.GOARCH instead

The architecture is available at runtime via stdlib, no need to bake
it in at build time.

Makefile

@@ -1,8 +1,7 @@
 .PHONY: check lint test fmt build clean
 
 VERSION := $(shell git describe --tags --always --dirty 2>/dev/null || echo "dev")
-BUILDARCH := $(shell go env GOARCH)
-LDFLAGS := -X main.Version=$(VERSION) -X main.Buildarch=$(BUILDARCH)
+LDFLAGS := -X main.Version=$(VERSION)
 
 # Default target: run all checks
 check: fmt-check lint test

cmd/pixad/main.go

@@ -20,7 +20,6 @@ import (
 var (
 	Appname = "pixad" //nolint:gochecknoglobals // set by ldflags
 	Version string    //nolint:gochecknoglobals // set by ldflags
-	Buildarch string    //nolint:gochecknoglobals // set by ldflags
 )
 
 var configPath string //nolint:gochecknoglobals // cobra flag
@@ -43,7 +42,6 @@ func main() {
 func run(_ *cobra.Command, _ []string) {
 	globals.Appname = Appname
 	globals.Version = Version
-	globals.Buildarch = Buildarch
 
 	// Set config path in environment if specified via flag
 	if configPath != "" {

internal/globals/globals.go

@@ -9,23 +9,18 @@ import (
 var (
 	Appname string //nolint:gochecknoglobals // set from main
 	Version string //nolint:gochecknoglobals // set from main
-	Buildarch string //nolint:gochecknoglobals // set from main
 )
 
 // Globals holds application-wide constants.
 type Globals struct {
 	Appname string
 	Version string
-	Buildarch string
 }
 
 // New creates a new Globals instance from build-time variables.
 func New(_ fx.Lifecycle) (*Globals, error) {
-	n := &Globals{
+	return &Globals{
 		Appname: Appname,
-		Buildarch: Buildarch,
 		Version: Version,
-	}
-
-	return n, nil
+	}, nil
 }

internal/logger/logger.go

@@ -4,6 +4,7 @@ package logger
 import (
 	"log/slog"
 	"os"
+	"runtime"
 
 	"go.uber.org/fx"
 	"sneak.berlin/go/pixa/internal/globals"
@@ -72,6 +73,6 @@ func (l *Logger) Identify() {
 	l.log.Info("starting",
 		"appname", l.globals.Appname,
 		"version", l.globals.Version,
-		"buildarch", l.globals.Buildarch,
+		"arch", runtime.GOARCH,
 	)
 }