diff --git a/.build.yml b/.build.yml
index 15ecd92..4ccdf4a 100644
--- a/.build.yml
+++ b/.build.yml
@@ -11,29 +11,6 @@ steps:
   commands:
   - git submodule update --init --recursive
 
-- name: patch
-  image: alpine/git
-  depends_on: [ submodules ]
-  commands:
-  - |-
-    sed -i 's/GNU bash, version (3\\\.\[1-9\]|4)/GNU bash, version (3.[1-9]|4|5)/g' modules/sdk/crosstool-NG/configure.ac
-
-  - mkdir -p modules/sdk/crosstool-NG/.build/tarballs
-  - wget https://github.com/libexpat/libexpat/releases/download/R_2_1_0/expat-2.1.0.tar.gz -O modules/sdk/crosstool-NG/.build/tarballs/expat-2.1.0.tar.gz
-
-- name: toolchain
-  image: debian:sid
-  depends_on: [ patch ]
-  commands:
-  - apt update
-  - apt install -y make bash gawk g++ gcc libc6-dev flex bison automake autoconf gperf texinfo wget git bzip2 help2man libtool libtool-bin unrar-free unzip ncurses-dev libexpat-dev python-dev python3
-  - cd modules/sdk
-  - export CT_EXPERIMENTAL=y
-  - export CT_ALLOW_BUILD_AS_ROOT=y
-  - export CT_ALLOW_BUILD_AS_ROOT_SURE=y
-  - make standalone=y -j$(nproc)
-  - wget -N https://raw.githubusercontent.com/espressif/esptool/master/esptool.py -O xtensa-lx106-elf/bin/esptool.py
-
 - name: firmware
   image: docker-repo.service.intern.lab.or.it:5000/fiatlux-build-env
   depends_on: [ submodules ]