diff --git a/BUILD.md b/BUILD.md
new file mode 100644
index 0000000..226940f
--- /dev/null
+++ b/BUILD.md
@@ -0,0 +1,39 @@
+# How to build ISO file
+
+## Preparing minceraft
+
+At first, you need to prepare minceraft.
+
+Minceraft preparing consists of 5 steps:
+
+- Copying UltimMC configs to `data/mine` dir
+- Building and copying mods to MC instance
+- Compiling UltimMC from source (if you want to skip this step, you only need to copy built release of UltimMC to `ultimmc/build` directory)
+- Downloading assets and libraries (just launches instance in online mode)
+- Copying UltimMC configs again
+
+Use `mkmine` to do all this automatically:
+
+```bash
+./mkmine
+
+# IMPORTANT: if you get java selection window, choose Java 21
+```
+
+## Creating ISO file
+
+Use `mkiso` script to create ISO file. Result will be in the `output/` directory.
+
+Script compiles it only for x86_64, but I think it's not really hard to make it compile for any other architecture
+
+This script only work on Void Linux (because it needs XBPS).
+
+```bash
+sudo ./mkiso
+
+# idk why it needs sudo, please pr if you know how to remove it
+```
+
+## One-liner
+
+Finally, you can forget all above and use just `[ -d data/mine ] || ./mkmine; sudo ./mkiso`
\ No newline at end of file
diff --git a/HACKING.md b/HACKING.md
new file mode 100644
index 0000000..5a1855b
--- /dev/null
+++ b/HACKING.md
@@ -0,0 +1,45 @@
+# How to add extra mods
+
+Important: we use Fabric Loader by default, if you want to change it to another loader, read `How to change MC version or loader` section below.
+
+## Building mod from source
+
+If you want to build them from source, just add new directory with `build.sh` script to `mods/`
+
+Example of build.sh:
+```bash
+#!/bin/bash
+
+./gradlew build 
+# build jar file
+
+mv build/libs/*.jar ../build 
+# move jar file to mods/build/
+```
+
+## Add an already built mod
+
+To add any mod you want, just add this line to `mods/build-all.sh`
+
+If you have downloading link:
+```bash
+wget https://example.com/path/to/your-mod.jar
+```
+
+If your jar is in some dir:
+```bash
+cp /path/to/your-mod.jar .
+```
+
+# How to change MC version or loader
+
+To change version or loader of Minceraft, edit `mine-data/mmc-pack.json` file.
+You can generate it with MultiMC or PrismLauncher, and just copy.
+
+# How to change my nickname
+
+UltimMC's nickname is stored in `run_mine.sh` file. Just change it from Steve to your one.
+
+# Finally
+
+Finally, after all the changes, build the ISO by [this guide](https://github.com/MeexReay/minceraftOS/blob/main/BUILD.md)
\ No newline at end of file
diff --git a/README.md b/README.md
index 0caf5b0..a1c02be 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ Precompiled images: [Latest release](https://github.com/MeexReay/minceraftOS/rel
 
 To burn live-cd iso to disk use:
 
-```
+```bash
 sudo dd if=/path/to/minceraftOS.iso of=/dev/<disk_id> status=progress
 ```
 
@@ -29,45 +29,11 @@ To find out your `<disk_id>` (ex. sda), use `lsblk` or `fdisk -l`
 
 For now, there is no read-write mode, only live-cd
 
-## How to make ISO file
+## How to build ISO file
 
-### Preparing minceraft
-
-At first, you need to prepare minceraft.
-
-Minceraft preparing consists of 5 steps:
-
-- Copying UltimMC configs to `data/mine` dir
-- Building and copying mods to MC instance
-- Compiling UltimMC from source (if you want to skip this step, you only need to copy built release of UltimMC to `ultimmc/build` directory)
-- Downloading assets and libraries (just launches instance in online mode)
-- Copying UltimMC configs again
-
-Use `mkmine` to do all this automatically:
-
-```
-./mkmine
-
-# IMPORTANT: if you get java selection window, choose Java 21
-```
-
-### Creating ISO file
-
-Use `mkiso` script to create ISO file. Result will be in the `output/` directory.
-
-Script compiles it only for x86_64, but I think it's not really hard to make it compile for any other architecture
-
-This script only work on Void Linux (because it needs XBPS).
-
-```
-sudo ./mkiso
-
-# idk why it needs sudo, please pr if you know how to remove it
-```
-
-### One-liner
-
-Finally, you can forget all above and use just `[ -d data/mine ] || ./mkmine; sudo ./mkiso`
+One-liner: `[ -d data/mine ] || ./mkmine; sudo ./mkiso` \
+Read more: [BUILD.md](https://github.com/MeexReay/minceraftOS/blob/main/BUILD.md) \
+Modification: [HACKING.md](https://github.com/MeexReay/minceraftOS/blob/main/HACKING.md)
 
 ## Roadmap
 
diff --git a/mods/build-all.sh b/mods/build-all.sh
index b91c0ce..d22bc34 100755
--- a/mods/build-all.sh
+++ b/mods/build-all.sh
@@ -13,4 +13,8 @@ for dir in */; do
     fi
 done
 
-curl -o build/fabric-api.jar https://cdn.modrinth.com/data/P7dR8mSH/versions/IXeiAH6H/fabric-api-0.118.5%2B1.21.4.jar
+cd build
+
+###   Add your extra mods here   ###
+
+wget https://cdn.modrinth.com/data/P7dR8mSH/versions/IXeiAH6H/fabric-api-0.118.5%2B1.21.4.jar
diff --git a/version b/version
index 17e51c3..6da28dd 100644
--- a/version
+++ b/version
@@ -1 +1 @@
-0.1.1
+0.1.1
\ No newline at end of file