diff --git a/README.md b/README.md
index 76e5a69..e6a8887 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,43 @@
 # strata-v100-docker
 
-Docker packaging for Strata (V100).
+Docker packaging for Strata (V100) with dsv41 engine.
 
 > Layout note: the engine must ship as a real file inside a folder holding its
 > CUDA libs — symlinks to the engine break it (`libcudart.so.12` missing). Copy
 > the whole package folder, never symlink it.
+
+## Building
+
+Place [Dockerfile.v100](Dockerfile.v100) into `strata/docker/`
+
+### Without proxy
+
+```shell
+docker build -f docker/Dockerfile.v100 -t strata:v100-dsv41 \
+  --build-arg CUDA_IMAGE=nvidia/cuda:12.9.1-devel-ubuntu24.04 \
+  --build-arg CUDA_ARCHITECTURES=70 \
+  --build-arg BUILD_DSV41=1 --build-arg BUILD_VISION=0 \
+  --build-arg STRATA_COMMIT=$(git rev-parse HEAD) .
+```
+
+### With proxy
+
+```shell
+docker build -f docker/Dockerfile.v100 -t strata:v100-dsv41 \
+  --build-arg CUDA_IMAGE=nvidia/cuda:12.9.1-devel-ubuntu24.04 \
+  --build-arg CUDA_ARCHITECTURES=70 \
+  --build-arg BUILD_DSV41=1 --build-arg BUILD_VISION=0 \
+  --build-arg BUILD_PROXY=socks5://localhost:1080 \
+  --build-arg STRATA_COMMIT=$(git rev-parse HEAD) .
+```
+
+### Without AVX instructions (old cpus)
+
+```shell
+docker build -f docker/Dockerfile.v100 -t strata:v100-dsv41 \
+  --build-arg CUDA_IMAGE=nvidia/cuda:12.9.1-devel-ubuntu24.04 \
+  --build-arg CUDA_ARCHITECTURES=70 \
+  --build-arg BUILD_DSV41=1 --build-arg BUILD_VISION=0 \
+  --build-arg BUILD_ISA_FLOOR=none \
+  --build-arg STRATA_COMMIT=$(git rev-parse HEAD) .
+```