improved readme

README.md

@@ -25,33 +25,31 @@ Stable, flexible and very simple in use Operating System, which doesn't restrict
 DepthOS requires GNU Make, GCC and NASM to build. And QEMU to run.
 
 
-## Build
-Kernel and userland requires a custom toolchain compiled for the platform.
-To use it, set `CC` and `LD` environment variables when running `make`.
-
-You can use one produced by "Working with ports" section (in particular, by `cross-toolchain` package).
-Like this: `CC=$PORTS_BUILDDIR/tools/cross-gcc/bin/i686-depthos-gcc LD=$PORTS_BUILDDIR/tools/cross-binutils/bin/i686-depthos-ld`
-
 ### Kernel
 To just build the kernel, run `make build`.
 
-## Applications
-
-To select the apps you want to build and install, edit the `APPS` variable in `apps/Makefile`.
+## Packages
 
-## Working with ports
+To build packages, you have to install [xbstrap](https://github.com/managarm/xbstrap) first.
 
-To build ports, you have to install [xbstrap](https://github.com/managarm/xbstrap) first.
-Afterwards you must create a build directory (`$PORTS_BUILDDIR`) and `cd` into it.
+Afterwards you must create a build directory (`$PKGS_BUILDDIR`) and `cd` into it.
 Then run `xbstrap init ../ports`.
 
 Now you can run `xbstrap compile-tool <tool>` (e.g. gcc) or `xbstrap build <package>` (e.g. libpng) to build tools/packages.
 
 After you have built the package/tool, you can install it by calling `xbstrap install`/`xbstrap install-tool`.
-If it's a package, it will be installed into the `$PORTS_BUILDDIR/system-root`.
-If it's a tool it's gonna be installed into `$PORTS_BUILDDIR/tools/path/to/tool` (e.g. `$BUILDDIR/tools/cross-gcc/bin/i686-depthos-gcc`).
+If it's a package, it will be installed into the `$PKGS_BUILDDIR/system-root`.
+If it's a tool it's going to be installed into `$PKGS_BUILDDIR/tools/path/to/tool` (e.g. `$BUILDDIR/tools/cross-gcc/bin/i686-depthos-gcc`).
+
+To install the package into the image, you'd have to set the `SYSROOT` variable to `$PKGS_BUILDDIR/system-root` when running `tools/sync.sh` script.
+
+## Build
+Kernel and userland requires a custom toolchain compiled for the platform.
+To use it, set `CC` and `LD` environment variables when running `make`.
 
-To install the package into the image, you'd have to set the `SYSROOT` variable to `$PORTS_BUILDDIR/system-root` when running `tools/sync.sh` script.
+> [!NOTE]
+> You can build `cross-gcc` and `cross-binutils` tools from previous section to build the kernel as well.
+> Like this: `CC=$PKGS_BUILDDIR/tools/cross-gcc/bin/i686-depthos-gcc LD=$PKGS_BUILDDIR/tools/cross-binutils/bin/i686-depthos-ld make ...`
 
 ## Generating the image