diff --git a/Dockerfile b/Dockerfile
index 1675888..d47d65b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -26,6 +26,8 @@ WORKDIR /go/src/tailscale
 COPY tailscale/go.mod tailscale/go.sum ./
 RUN go mod download
 
+RUN apk add --no-cache upx
+
 # Pre-build some stuff before the following COPY line invalidates the Docker cache.
 RUN go install \
     github.com/aws/aws-sdk-go-v2/aws \
@@ -48,12 +50,14 @@ ARG VERSION_GIT_HASH=""
 ENV VERSION_GIT_HASH=$VERSION_GIT_HASH
 ARG TARGETARCH
 
-RUN GOARCH=$TARGETARCH go install -ldflags="\
+RUN GOARCH=$TARGETARCH go install -ldflags="-w -s\
       -X tailscale.com/version.Long=$VERSION_LONG \
       -X tailscale.com/version.Short=$VERSION_SHORT \
       -X tailscale.com/version.GitCommit=$VERSION_GIT_HASH" \
       -v ./cmd/tailscale ./cmd/tailscaled
 
+RUN upx /go/bin/tailscale && upx /go/bin/tailscaled
+
 FROM alpine:3.18
 
 RUN apk add --no-cache ca-certificates iptables iproute2 ip6tables bash openssh curl jq
diff --git a/README.md b/README.md
index f74d03a..a3557bc 100644
--- a/README.md
+++ b/README.md
@@ -107,7 +107,7 @@ add name="tailscale" src="/tailscale" dst="/var/lib/tailscale"
 
 6. Create the container
 
-The container can be created via the container registry (Step 6a) or using the `tailscale.tar` file generated by building the Docker image locally (Step 6b).
+The container can be created via the container registry (Step 6a) or using the `tailscale.tar` file generated by building the Docker image locally (Step 6b or 6c).
 
 6a. Container registry
 
@@ -130,6 +130,26 @@ Using the file `tailscale.tar` generated by running `build.sh`, upload the file
 
 If you want to see the container output in the router log add `logging=yes` to the container add command. 
 
+6b. Tar archive file (routers without external storage)
+
+For routers without USB port (tested on hAP ax2) it's possible to use ramdisk to temporary store `tailscale.tar` file.
+
+Firstly make sure that there is no old version of container installed. Firstly create `tmpfs` disk:
+
+```
+/disk add type=tmpfs tmpfs-max-size=200M
+```
+Upload `tailscale.tar` file to `tmp1/` disk (or move it after uploading to root folder)
+
+Then start container like in 6b:
+
+```
+/container add file=tmp1/tailscale.tar interface=veth1 envlist=tailscale root-dir=containers/tailscale mounts=tailscale start-on-boot=yes hostname=mikrotik dns=8.8.4.4,8.8.8.8
+```
+
+Router will unpack tarball to internal storage. Once container is created it's ok to remove tarball from `tmpfs`. Also,
+container will be preserved after router reboot.
+
 ### Start the Container
 
 Ensure the container has been extracted and added by verifying `status=stopped` using `/container/print`