diff --git a/README.md b/README.md
index c9921f6..2d1a24c 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ Maiko is the implementation of the Medley Interlisp virtual machine, for a
 byte-coded Lisp instruction set and some low-level functions for
 connecting with Lisp for access to display (via X11) and disk etc.
 
-Newcomers should check out the [Medley Interlisp Introduction](https://github.com/Interlisp/medley/wiki/Medley-Interlisp-Introduction).
+For an overview, see [Medley Interlisp Introduction](https://github.com/Interlisp/medley/wiki/Medley-Interlisp-Introduction).
 
 See [the Medley repository](https://github.org/Interlisp/medley) for
 * [Issues](https://github.com/Interlisp/medley/issues) (note that maiko issues are there too)
@@ -33,18 +33,17 @@ $ cd maiko/bin
 $ ./makeright x
 ```
 
-* The build will (attempt to) detect the OS-type and cpu-type. It will build binaries `lde` and `ldex` in `../ostype.cputype` (with .o files in `..ostype.cputype-x`. For example, Linux on a 64-bit x86 will use `linux.x86_64`, while MacOS 11 on (new) Mac will use `darwin.arm64`.
-* If you prefer using `gcc` over `clang`, you will need to edit the makefile fragment for your configuration (`makefile-ostype.cputype-x1) and comment out the line (with a #) that defines `CC` for `clang` and uncomment the line (delete the #) for the line that defines `CC` for `gcc`.
-* There is a cmake configuration (TBD)
+* The build will (attempt to) detect the OS-type and cpu-type. It will build binaries `lde` and `ldex` in `../ostype.cputype` (with .o files in `..ostype.cputype-x`. For example, Linux on a 64-bit x86 will use `linux.x86_64`, while MacOS 11 on a (new M1) Mac will use `darwin.aarch64`.
+* If you prefer using `gcc` over `clang`, you will need to edit the makefile fragment for your configuration (`makefile-ostype.cputype-x`) and comment out the line (with a #) that defines `CC` for `clang` and uncomment the line (delete the #) for the line that defines `CC` for `gcc`.
+* There is a cmake configuration (TBD To Be Described here).
 
 ### Building For MacOS
 
 * Running on MacOS requires an X server, and building on a Mac requires X client libraries.
-An X-server for x86 MacOS (and X11 client libraries) can be freely obtained at https://www.xquartz.org/
-For the new arm64 MacOS 11, you'll need https://x.org which you can get via MacPorts or Brew.
+An X-server for MacOS (and X11 client libraries) can be freely obtained at https://www.xquartz.org/releases
 
 ### Building for Windows 10
 
-Windows 10 currently requires "Docker for Desktop" or WSL2 -- basically a Linux virtual machine -- and a (Windows X-server).
+Windows 10 currently requires "Docker for Desktop" or WSL2 and a (Windows X-server).
 See [Medley's README](https://github.com/Interlisp/medley/blob/master/README.md) for more.