diff --git a/.dockerignore b/.dockerignore
index 6f359f7..d6cf9c3 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -48,3 +48,5 @@ environments/
 *.swp
 *.swo
 .DS_Store
+
+config/VERSION.txt
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 0e5251b..b55af1f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,4 +10,5 @@
 !.example.env
 !/bruno/environments/dev.bru
 !.gitkeep
-/tigerbeetle_api
\ No newline at end of file
+/tigerbeetle_api
+/config/VERSION.txt
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index c14391c..7ffdd3b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,6 +17,9 @@ COPY . .
 # Enable CGO and specify the Zig compiler
 ENV CGO_ENABLED=1 CC="zig cc"
 # Build the Go application
+RUN --mount=type=cache,target=/go/pkg/mod \
+   --mount=type=cache,target=/root/.cache/go-build \
+   go generate ./...
 RUN --mount=type=cache,target=/go/pkg/mod \
    --mount=type=cache,target=/root/.cache/go-build \
    go build -o tigerbeetle_api .
diff --git a/grpc/config.go b/config/config.go
similarity index 95%
rename from grpc/config.go
rename to config/config.go
index 080810d..a4ef18f 100644
--- a/grpc/config.go
+++ b/config/config.go
@@ -1,6 +1,7 @@
-package grpc
+package config
 
 import (
+	"fmt"
 	"log/slog"
 	"os"
 	"strconv"
@@ -103,5 +104,8 @@ func NewConfig() (ok bool) {
 
 		PrometheusAddr: prometheusAddr,
 	}
+
+	slog.Info(fmt.Sprintf("%+v", Config))
+	slog.Info("Config loaded", "version", version)
 	return true
 }
diff --git a/grpc/config_test.go b/config/config_test.go
similarity index 98%
rename from grpc/config_test.go
rename to config/config_test.go
index fc07b79..1797ad9 100644
--- a/grpc/config_test.go
+++ b/config/config_test.go
@@ -1,4 +1,4 @@
-package grpc
+package config
 
 import (
 	"os"
diff --git a/config/version.go b/config/version.go
new file mode 100644
index 0000000..dfcb647
--- /dev/null
+++ b/config/version.go
@@ -0,0 +1,7 @@
+package config
+
+import _ "embed"
+
+//go:generate sh -c "printf %s $(git rev-parse HEAD) > VERSION.txt"
+//go:embed VERSION.txt
+var version string
diff --git a/grpc/routes.go b/grpc/routes.go
index c1f8709..733c274 100644
--- a/grpc/routes.go
+++ b/grpc/routes.go
@@ -8,6 +8,7 @@ import (
 	"os"
 
 	"github.com/charithe/timedbuf/v2"
+	"github.com/lil5/tigerbeetle_api/config"
 	"github.com/lil5/tigerbeetle_api/metrics"
 	"github.com/lil5/tigerbeetle_api/proto"
 	"github.com/samber/lo"
@@ -40,8 +41,8 @@ type App struct {
 }
 
 func (a *App) getRandomTBuf() *timedbuf.TimedBuf[TimedPayload] {
-	if Config.BufferCluster > 1 {
-		i := rand.IntN(Config.BufferCluster - 1)
+	if config.Config.BufferCluster > 1 {
+		i := rand.IntN(config.Config.BufferCluster - 1)
 		return a.TBufs[i]
 	} else {
 		return a.TBuf
@@ -58,7 +59,7 @@ func (a *App) Close() {
 const TB_MAX_BATCH_SIZE = 8190
 
 func NewApp() *App {
-	tigerbeetle_go, err := tigerbeetle_go.NewClient(types.Uint128{uint8(Config.TbClusterID)}, Config.TbAddresses)
+	tigerbeetle_go, err := tigerbeetle_go.NewClient(types.Uint128{uint8(config.Config.TbClusterID)}, config.Config.TbAddresses)
 	if err != nil {
 		slog.Error("unable to connect to tigerbeetle", "err", err)
 		os.Exit(1)
@@ -66,11 +67,13 @@ func NewApp() *App {
 
 	var tbuf *timedbuf.TimedBuf[TimedPayload]
 	var tbufs []*timedbuf.TimedBuf[TimedPayload]
-	if Config.IsBuffered {
-		tbufs = make([]*timedbuf.TimedBuf[TimedPayload], Config.BufferCluster)
+	if config.Config.IsBuffered {
+		tbufs = make([]*timedbuf.TimedBuf[TimedPayload], config.Config.BufferCluster)
 
 		// The maximum batch size is set in the TigerBeetle server. The default is 8190.
-		lenMaxBuf := float64(Config.BufferSize)
+		bufSizeFull := float64(config.Config.BufferSize)
+		bufSize80 := bufSizeFull * 0.8
+
 		flushFunc := func(payloads []TimedPayload) {
 			transfers := []types.Transfer{}
 			lenPayloads := float64(len(payloads))
@@ -89,8 +92,13 @@ func NewApp() *App {
 				payloads[isOverflowMaxTransferSizeIndex].buf.Put(payloads[isOverflowMaxTransferSizeIndex:]...)
 			}
 			metrics.TotalBufferCount.Inc()
-			metrics.TotalBufferContents.Add(lenPayloads)
-			metrics.TotalBufferMax.Add(lenMaxBuf)
+			if lenPayloads == bufSizeFull {
+				metrics.TotalBufferContentsFull.Inc()
+			} else if lenPayloads >= bufSize80 {
+				metrics.TotalBufferContentsGt80.Inc()
+			} else {
+				metrics.TotalBufferContentsLt80.Inc()
+			}
 			metrics.TotalCreateTransferTx.Add(float64(len(transfers)))
 			metrics.TotalTbCreateTransfersCall.Inc()
 			results, err := tigerbeetle_go.CreateTransfers(transfers)
@@ -104,8 +112,8 @@ func NewApp() *App {
 				payload.c <- res
 			}
 		}
-		for i := range Config.BufferCluster {
-			tbufs[i] = timedbuf.New(Config.BufferSize, Config.BufferDelay, flushFunc)
+		for i := range config.Config.BufferCluster {
+			tbufs[i] = timedbuf.New(config.Config.BufferSize, config.Config.BufferDelay, flushFunc)
 		}
 		tbuf = tbufs[0]
 	}
@@ -231,7 +239,7 @@ func (s *App) CreateTransfers(ctx context.Context, in *proto.CreateTransfersRequ
 
 	var err error
 	var replies []*proto.CreateTransfersReplyItem
-	if Config.IsBuffered {
+	if config.Config.IsBuffered {
 		buf := s.getRandomTBuf()
 		c := make(chan TimedPayloadResponse)
 		buf.Put(TimedPayload{
diff --git a/grpc/server.go b/grpc/server.go
index d2391c7..d55bcd6 100644
--- a/grpc/server.go
+++ b/grpc/server.go
@@ -6,6 +6,7 @@ import (
 	"net"
 	"os"
 
+	"github.com/lil5/tigerbeetle_api/config"
 	"github.com/lil5/tigerbeetle_api/metrics"
 	"github.com/lil5/tigerbeetle_api/proto"
 	"github.com/prometheus/client_golang/prometheus"
@@ -19,10 +20,10 @@ import (
 
 func NewServer() {
 	networkType := "tcp"
-	if Config.OnlyIpv4 {
+	if config.Config.OnlyIpv4 {
 		networkType = "ipv4"
 	}
-	lis, err := net.Listen(networkType, fmt.Sprintf("%s:%s", Config.Host, Config.Port))
+	lis, err := net.Listen(networkType, fmt.Sprintf("%s:%s", config.Config.Host, config.Config.Port))
 	if err != nil {
 		slog.Error("Failed to listen", "error", err)
 		os.Exit(1)
@@ -32,17 +33,17 @@ func NewServer() {
 	defer app.Close()
 	proto.RegisterTigerBeetleServer(s, app)
 
-	if Config.GrpcHealthServer {
+	if config.Config.GrpcHealthServer {
 		healthServer := health.NewServer()
 		healthpb.RegisterHealthServer(s, healthServer)
 		healthServer.SetServingStatus("tigerbeetle.TigerBeetle", healthpb.HealthCheckResponse_SERVING)
 	}
 
-	if Config.GrpcReflection {
+	if config.Config.GrpcReflection {
 		reflection.Register(s)
 	}
 
-	prometheusDeferClose := metrics.Register(Config.PrometheusAddr)
+	prometheusDeferClose := metrics.Register(config.Config.PrometheusAddr)
 	defer prometheusDeferClose()
 	srvMetrics := grpcprom.NewServerMetrics(grpcprom.WithServerHandlingTimeHistogram(
 		grpcprom.WithHistogramBuckets([]float64{0.001, 0.01, 0.1, 0.3, 0.6, 1, 3, 6, 9, 20, 30, 60, 90, 120}),
diff --git a/main.go b/main.go
index 9dfb07f..8da2561 100644
--- a/main.go
+++ b/main.go
@@ -4,16 +4,18 @@ import (
 	"os"
 
 	"github.com/joho/godotenv"
+	"github.com/lil5/tigerbeetle_api/config"
 	"github.com/lil5/tigerbeetle_api/grpc"
 	"github.com/lil5/tigerbeetle_api/rest"
 )
 
 func main() {
 	godotenv.Load()
-	if ok := grpc.NewConfig(); !ok {
+	if ok := config.NewConfig(); !ok {
 		os.Exit(1)
 	}
-	if grpc.Config.UseGrpc {
+	// log add version
+	if config.Config.UseGrpc {
 		grpc.NewServer()
 	} else {
 		rest.NewServer()
diff --git a/metrics/counters.go b/metrics/counters.go
index 839a525..d3de34c 100644
--- a/metrics/counters.go
+++ b/metrics/counters.go
@@ -6,19 +6,22 @@ import (
 )
 
 var (
-	TotalBufferContents = promauto.NewCounter(prometheus.CounterOpts{
-		Name: "tigerbeetleapi_buffer_contents_total",
-		Help: "Tigerbeetle requests buffered filled size sum",
+	TotalBufferContentsFull = promauto.NewCounter(prometheus.CounterOpts{
+		Name: "tigerbeetleapi_buffer_contents_full_total",
+		Help: "Tigerbeetle buffer filled size is full",
 	})
-
-	TotalBufferMax = promauto.NewCounter(prometheus.CounterOpts{
-		Name: "tigerbeetleapi_buffer_max_total",
-		Help: "Tigerbeetle requests buffer max size sum",
+	TotalBufferContentsLt80 = promauto.NewCounter(prometheus.CounterOpts{
+		Name: "tigerbeetleapi_buffer_contents_lt80_total",
+		Help: "Tigerbeetle buffer filled size is less than 80%",
+	})
+	TotalBufferContentsGt80 = promauto.NewCounter(prometheus.CounterOpts{
+		Name: "tigerbeetleapi_buffer_contents_gte80_total",
+		Help: "Tigerbeetle buffer filled size is greater than or equal to 80%",
 	})
 
 	TotalBufferCount = promauto.NewCounter(prometheus.CounterOpts{
 		Name: "tigerbeetleapi_buffer_count_total",
-		Help: "Tigerbeetle requests total buffers",
+		Help: "Tigerbeetle requests total buffer instances created",
 	})
 
 	TotalCreateTransferTx = promauto.NewCounter(prometheus.CounterOpts{
diff --git a/rest/server.go b/rest/server.go
index 483c461..079175b 100644
--- a/rest/server.go
+++ b/rest/server.go
@@ -9,6 +9,7 @@ import (
 	"net/http"
 
 	"github.com/gin-gonic/gin"
+	"github.com/lil5/tigerbeetle_api/config"
 	"github.com/lil5/tigerbeetle_api/grpc"
 	"github.com/lil5/tigerbeetle_api/metrics"
 
@@ -18,12 +19,12 @@ import (
 )
 
 func NewServer() {
-	if grpc.Config.Mode != "development" {
+	if config.Config.Mode != "development" {
 		gin.SetMode(gin.ReleaseMode)
 	}
 	r, app := Router()
 	defer app.Close()
-	slog.Info("Rest server listening at", "host", grpc.Config.Host, "port", grpc.Config.Port)
+	slog.Info("Rest server listening at", "host", config.Config.Host, "port", config.Config.Port)
 	defer slog.Info("Server exiting")
 
 	mdlw := middleware.New(middleware.Config{
@@ -31,11 +32,11 @@ func NewServer() {
 	})
 	r.Use(ginmiddleware.Handler("", mdlw))
 
-	prometheusDeferClose := metrics.Register(grpc.Config.PrometheusAddr)
+	prometheusDeferClose := metrics.Register(config.Config.PrometheusAddr)
 	defer prometheusDeferClose()
 
-	addr := fmt.Sprintf("%s:%s", grpc.Config.Host, grpc.Config.Port)
-	if grpc.Config.OnlyIpv4 {
+	addr := fmt.Sprintf("%s:%s", config.Config.Host, config.Config.Port)
+	if config.Config.OnlyIpv4 {
 		server := &http.Server{Handler: r}
 		l, err := net.Listen("tcp4", addr)
 		if err != nil {
diff --git a/suite_e2e_test.go b/suite_e2e_test.go
index 8fe7b76..3c8b8f0 100644
--- a/suite_e2e_test.go
+++ b/suite_e2e_test.go
@@ -16,6 +16,7 @@ import (
 	"time"
 
 	"github.com/gin-gonic/gin"
+	"github.com/lil5/tigerbeetle_api/config"
 	"github.com/lil5/tigerbeetle_api/grpc"
 	"github.com/lil5/tigerbeetle_api/rest"
 	"github.com/stretchr/testify/suite"
@@ -56,7 +57,7 @@ func (s *MyTestSuite) SetupSuite() {
 
 	os.Setenv("TB_ADDRESSES", TB_ADDRESSES)
 	os.Setenv("TB_CLUSTER_ID", TB_CLUSTER_ID)
-	if ok := grpc.NewConfig(); !ok {
+	if ok := config.NewConfig(); !ok {
 		s.FailNow("SetupSuite failed to initialize creating configuration")
 		return
 	}