diff --git a/build.sh b/build.sh
index 3672890..1433d54 100755
--- a/build.sh
+++ b/build.sh
@@ -259,7 +259,10 @@ data_uuid=${DATA}
 "
 
 write_env "${GRUB_ENV}" "\
+check_squashfs=enforce
 grub_sleep=999
+time_out=10
+to_ram=enforce
 "
 
 # grub / fonts ⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅
diff --git a/images/nightly.png.sig b/images/nightly.png.sig
deleted file mode 100644
index 37d99a2..0000000
Binary files a/images/nightly.png.sig and /dev/null differ
diff --git a/live/main.sh b/live/main.sh
index 2785aed..bcad76e 100644
--- a/live/main.sh
+++ b/live/main.sh
@@ -10,6 +10,8 @@ menuentry '↑ cmd →' { menu 'cmd' }
 menu_split
 menuentry 'check_squashfs = enforce' { check_squashfs='enforce' }
 menuentry 'check_squashfs = no' { check_squashfs='no' }
+menuentry 'to_ram = enforce' { to_ram='enforce' }
+menuentry 'to_ram = no' { to_ram='no' }
 menu_split
 menuentry 'bash / stable / tui' { debsquash '/boot/bash/stable/tui' }
 menuentry 'bash / stable / gui' { debsquash '/boot/bash/stable/gui' }
diff --git a/live/source/boot.sh b/live/source/boot.sh
index 0a78ded..23dc67f 100644
--- a/live/source/boot.sh
+++ b/live/source/boot.sh
@@ -23,6 +23,10 @@ function debsquash {
     echo
     echo 'linux'
     echo "${linux_path}"
+    toram='toram'
+    if [ "${to_ram}" == 'enforce' ] ; then
+        toram="${toram}=${sfs}"
+    fi
     linux \
 "${linux_path}" \
 boot="live" \
@@ -30,7 +34,7 @@ elevator="deadline" \
 ip="frommedia" \
 live-media-path="${lmp}" \
 live-media-uuid="${data_uuid}" \
-toram="${sfs}"
+"${toram}"
     #
     echo
     echo 'initrd'
diff --git a/live/source/env.sh b/live/source/env.sh
index edc7e01..66ade13 100644
--- a/live/source/env.sh
+++ b/live/source/env.sh
@@ -1,7 +1,7 @@
 function env {
 action="${1}"
     setparams \
-    'check_squashfs' 'time_out'
+    'check_squashfs' 'grub_sleep' 'time_out' 'to_ram'
     if [ "${action}" == 'load' ] ; then
         load_env \
         --skip-sig \
@@ -49,5 +49,7 @@ function env_mod {
 
 function env_set {
     check_squashfs='enforce'
+    grub_sleep=999
     time_out=10
+    to_ram='enforce'
 }
diff --git a/readme.md b/readme.md
index 0ca2f40..39c64e9 100644
--- a/readme.md
+++ b/readme.md
@@ -4,84 +4,79 @@ Build an ESP File System including:
 * standalone EFI & BIOS GRUB images
 * boot time dynamic GRUB menu
 
+## Dependencies
+
+* grub-common
+  * grub-mkimage
+* grub-efi-amd64-bin
+  * x86_64-efi
+* grub-efi-amd64-signed
+  * grubx64.efi.signed
+* grub-pc-bin
+  * i386-pc
+    * boot.img
+    * grub-bios-setup
+* shim-signed
+  * shimx64.efi.signed
+
+* grub-theme-breeze
+  * themes/breeze
+* grub-theme-starfield
+  * themes/starfield
+
 ## Project
 
-* build.mod
-* build.py
-* build.sh
-* images
-  * nightly.png
-* license.md
-* live
-  * env.sh
-  * main.sh
-  * menu
-    * cmd.sh
-    * env.sh
-    * gfx.sh
-    * main.sh
-  * menu.sh
-  * scan.sh
-  * util.sh
-  * var.sh
-* menu
-  * main.sh
-* todo.gv
+```
+├── __init__.py
+├── __main__.py
+├── build.mod
+├── build.sh
+├── doc.py
+├── esp.py
+├── grub.cfg.sh
+├── grubx64.efi.signed.sh
+├── images
+│  └── nightly.png
+├── license.md
+├── live
+│  ├── main.sh
+│  ├── menu
+│  │  ├── cmd.sh
+│  │  ├── env.sh
+│  │  ├── gfx.sh
+│  │  ├── scan.sh
+│  │  └── set.sh
+│  └── source
+│     ├── boot.sh
+│     ├── env.sh
+│     ├── menu.sh
+│     ├── probe.sh
+│     ├── scan.sh
+│     └── util.sh
+├── readme
+│  └── grub.md
+├── readme.md
+├── todo.gv
+└── todo.svg
+```
 
-* todo.svg
+## Usage
 
-## Build
-
-* bios
-  * boot.img
-  * core.img
-  * setup.sh
-* efi
-  * boot
-    * bootx64.efi
-* grub
-  * fonts
-    * *.pf2
-  * grub.cfg
-  * i386-pc
-    * *.lst
-    * *.mod
-  * locale
-    * *.mo
-  * themes
-    * breeze
-    * starfield
-  * x86_64-efi
-    * *.lst
-    * *.mod
-* grub.env
-
-## Tasks
-
-- [x] comply with secure boot
-- [x] choose to check squashfs or not
-
-- [ ] bash
-  - [ ] mimic grubx64.efi.signed ←
-    - [ ] efi
-      - [ ] include fonts/unicode
-    - [ ] bios
-  - [ ] find & setup bios device
-
-- [ ] rewrite in python
-
-![Graph](todo.svg)
-
-### Later
-
-- [ ] target arm
-- [ ] make keyboard layouts
-- [ ] make custom fonts
-- [ ] target specific live-media
-  - [ ] -mount-opts?
+### build
+
+```
+build.sh pgp_fingerprint /esp/mount/point [/data/mount/point]
+```
+
+#### example
+
+```
+/rwx/lsgm/build.sh 9C7613450C80C24F /media/ssd/esp /media/ssd/data
+```
+
+#### output
 
 ```
-/esp
 ├── bios
 │  ├── boot.img
 │  ├── core.img
@@ -137,3 +132,82 @@ Build an ESP File System including:
 │     └── grubx64.efi
 └── grub.env
 ```
+
+### setup
+
+```
+setup.sh /dev/device
+```
+
+* example:
+
+```
+bash /media/ssd/esp/bios/setup.sh /dev/sda
+```
+
+## Roadmap
+
+![Graph](todo.svg)
+
+### BASH
+
+#### build
+
+* [ ] make custom
+
+  * [ ] fonts
+  * [ ] keyboard layouts
+
+* [ ] make images
+
+  * [ ] mimic grubx64.efi.signed
+  * [ ] targets
+
+    * [ ] arm
+    * [x] i386-pc
+    * [x] x86_64-efi
+    * [x] x86_64-efi-signed
+
+  * [ ] embed extra
+
+    * [ ] fonts
+    * [ ] keyboard layouts
+    * [ ] locales
+
+* [x] copy
+
+  * [x] fonts
+  * [x] locales
+  * [x] themes
+
+* [x] sign files
+* [ ] setup bios
+
+  * [x] write for manual call
+
+    * [x] boot image
+    * [x] core image
+    * [x] setup script
+
+  * [ ] auto
+
+    * [ ] find esp device
+    * [ ] write bios_grub partition
+
+#### live
+
+* [x] check signatures
+* [ ] options
+
+  * [x] check signatures for *.squashfs
+  * [x] boot to ram
+  * [ ] locales
+  * [ ] themes
+
+* [ ] target specific live-media
+
+  * [ ] try -mount-opts
+
+### Python
+
+…