diff --git a/README.md b/README.md
index 82b61b1..f132274 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,8 @@ Just copy the binary, and exec from the entry point script.
 There are three binaries in this project: `wingmate`, `wmpidproxy`, and `wmexec`.
 
 `wingmate` is the core binary. It reads config, starts, restarts services. It also
-runs cron. Read [here](#wingmate-core-binary) for further details about `wingmate`.
+runs cron. Read the [configuration](#configuration) section for files needed to run
+`wingmate`.
 
 `wmpidproxy` is a helper binary for monitoring _legacy style_ service (fork, exit
 initial proces, and continue in background). Read [here](#wingmate-pid-proxy-binary)
@@ -109,9 +110,30 @@ wmpidproxy --pid-file <path to pid file> -- <background service binary/start scr
 #### Example
 Running sshd background with `wingmate` and `wmpidproxy`: [here](example/ssh-docker)
 
+#### Note
+
+It is recommended to configure services to run in foreground if they support it. When services
+running in foreground, they are running as direct children process of `wingmate`.
+`wingmate` monitors children process effectively. Whenever a child process exited/terminated,
+`wingmate` will start it again quickly. Running in foreground also removes the overhead of running
+`wmpidproxy` together with the service.
+
 ## Wingmate Exec binary
 
+`wingmate` runs all the services as its children using the same `uid`, `gid`, and in the
+same process group. You can use `wmexec` to run service in different `uid`, `gid`, or make
+the service process as its own process group leader.
 
-## Wingmate core binary
-### Service
-### Cron
+#### Syntax
+
+```shell
+wmexec [--user <uid>[:<gid>]] [--setsid] -- <target executable>
+```
+| Option   | Parameter | Description                                                                                              |
+|----------|-----------|----------------------------------------------------------------------------------------------------------|
+| --user   | uid[:gid] | Set the real user ID and the real group id. Uid and Gid can be either in numeric form or in name form    |
+| --setsid |           | Set the process become the leader of its own process group, effectively detaching from parent's terminal |
+
+#### Example
+
+You can find example for `wmexec` in [here](docker/alpine/etc/wingmate) and [here](docker/bookworm/etc/wingmate)
\ No newline at end of file
diff --git a/docker/alpine/gettting-started.md b/docker/alpine/gettting-started.md
deleted file mode 100644
index 0718b09..0000000
--- a/docker/alpine/gettting-started.md
+++ /dev/null
@@ -1,90 +0,0 @@
-# Getting Started
-
-_Note: This document is for Alpine base image user, if you are using Debian/Ubuntu read [this one](../bookworm/gettting-started.md) instead._
-
-## Binaries
-
-There are three binaries in in this project: `wingmate`, `wmpidproxy`, and `wmexec`.
-
-`wingmate` is the core binary. It reads config, starts, restarts services. It also
-runs cron. Read [here](#wingmate-core-binary) for further details about `wingmate`.
-
-`wmpidproxy` is a helper binary for monitoring _legacy style_ service (fork, exit 
-initial proces, and continue in background). Read [here](#wingmate-pid-proxy-binary)
-for further details about `wmpidproxy`.
-
-`wmexec` is a helper binary for running process in different `user` or `group`.
-It also useful for setting the process as process group leader.
-Read [here](#wingmate-exec-binary) for further details about `wmexec`.
-
-## Building a container image based on wingmate image in Docker Hub
-
-Wingmate has no dependency other than `alpine` base image, so you just need to copy
-the binaries directly. If you have built your application into an `alpine` based image,
-all you need to do is copy whichever binary you need, crontab file (if you use cron)
-and add some shell script to glue them together. Here is a Dockerfile example.
-
-```Dockerfile
-# Dockerfile
-FROM suyono/wingmate:alpine as source
-
-FROM alpine:latest
-ADD --chmod=755 wingmate/ /etc/wingmate/
-ADD --chmod=755 entry.sh /usr/local/bin/entry.sh
-COPY --from=source /usr/local/bin/wingmate /usr/local/bin/wingmate
-COPY --from=source /usr/local/bin/wmpidproxy /usr/local/bin/wmpidproxy
-COPY --from=source /usr/local/bin/wmexec /usr/local/bin/wmexec
-ENTRYPOINT [ "/usr/local/bin/entry.sh" ]
-CMD [ "/usr/local/bin/wingmate" ]
-```
-You can find some examples for shell script in this [directory](../alpine/).
-
-## Configuration
-
-When `wingmate` binary starts, it will look for some files. By default, it will
-try to read the content of `/etc/wingmate` directory. You can change the directory
-where it reads by setting `WINGMATE_CONFIG_PATH` environment variable. The structure
-inside the config path should look like this.
-
-```shell
-/etc
- └── wingmate
-     ├── crontab
-     ├── crontab.d
-     │   ├── cron1.sh
-     │   ├── cron2.sh
-     │   └── cron3.sh
-     └── service
-         ├── one.sh
-         └── spawner.sh
-```
-
-First, `wingmate` will try to read the content of `service` directory. The content of
-this directory should be executables (either shell scripts or binaries). The wingmate
-will run every executable in `service` directory without going into any subdirectory.
-
-Next, `wingmate` will read the `crontab` file. `wingmate` expects the `crontab` file using
-common UNIX crontab file format. Something like this
-
-```shell
- ┌───────────── minute (0–59)
- │ ┌───────────── hour (0–23)
- │ │ ┌───────────── day of the month (1–31)
- │ │ │ ┌───────────── month (1–12)
- │ │ │ │ ┌───────────── day of the week (0–6) (Sunday to Saturday)
- │ │ │ │ │ 
- │ │ │ │ │
- │ │ │ │ │
- * * * * * <commad or shell script or binary>
-```
-
-The command part only support simple command and arguments. Shell expression is not supported
-yet. It is recommended to write a shell script and put the path to shell script in
-the command part.
-
-# Appendix
-## Wingmate core binary
-### Service
-### Cron
-## Wingmate PID Proxy binary
-## Wingmate Exec binary
\ No newline at end of file
diff --git a/docker/bookworm/gettting-started.md b/docker/bookworm/gettting-started.md
deleted file mode 100644
index 21f6578..0000000
--- a/docker/bookworm/gettting-started.md
+++ /dev/null
@@ -1,12 +0,0 @@
-```shell
-/etc
- └── wingmate
-     ├── crontab
-     ├── crontab.d
-     │   ├── cron1.sh
-     │   ├── cron2.sh
-     │   └── cron3.sh
-     └── service
-         ├── one.sh
-         └── spawner.sh
-```
\ No newline at end of file