diff --git a/Cargo.lock b/Cargo.lock
index 0245850..182cf4d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -154,6 +154,7 @@ version = "0.1.0"
 dependencies = [
  "chrono",
  "clap 4.3.3",
+ "const_format",
  "criterion",
  "env_logger 0.10.0",
  "lazy_static",
@@ -331,6 +332,26 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
 
+[[package]]
+name = "const_format"
+version = "0.2.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c990efc7a285731f9a4378d81aff2f0e85a2c8781a05ef0f8baa8dac54d0ff48"
+dependencies = [
+ "const_format_proc_macros",
+]
+
+[[package]]
+name = "const_format_proc_macros"
+version = "0.2.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e026b6ce194a874cb9cf32cd5772d1ef9767cc8fcb5765948d74f37a9d8b2bf6"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
 [[package]]
 name = "core-foundation-sys"
 version = "0.8.4"
@@ -755,9 +776,9 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.18"
+version = "0.4.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "518ef76f2f87365916b142844c16d8fefd85039bc5699050210a7778ee1cd1de"
+checksum = "b06a4cde4c0f271a446782e3eff8de789548ce57dbc8eca9292c27f4a42004b4"
 
 [[package]]
 name = "memchr"
@@ -1059,9 +1080,9 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "0.37.19"
+version = "0.37.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "acf8729d8542766f1b2cf77eb034d52f40d375bb8b615d0b147089946e16613d"
+checksum = "b96e891d04aa506a6d1f318d2771bcb1c7dfda84e126660ace067c9b474bb2c0"
 dependencies = [
  "bitflags",
  "errno",
@@ -1418,6 +1439,12 @@ version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
 
+[[package]]
+name = "unicode-xid"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f962df74c8c05a667b5ee8bcf162993134c104e96440b663c8daa176dc772d8c"
+
 [[package]]
 name = "url"
 version = "2.4.0"
diff --git a/Cargo.toml b/Cargo.toml
index cd01eb9..223f951 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,6 +4,8 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+chrono = "0.4"
+const_format = "0.2"
 clap = { version = "4.3", features = ["derive"] }
 rusttype = "0.9"
 number_prefix = "0.4"
@@ -17,7 +19,6 @@ simple_moving_average = "0.1"
 thread-priority = "0.13"
 tokio = { version = "1.28", features = ["fs", "rt-multi-thread", "net", "io-util", "macros", "process", "signal", "sync", "time"] }
 vncserver = { version ="0.2", optional = true}
-chrono = "0.4.26"
 
 [dev-dependencies]
 criterion = {version = "0.5", features = ["async_tokio"]}
diff --git a/src/parser.rs b/src/parser.rs
index ec36a45..7b4c375 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -1,21 +1,26 @@
+use crate::framebuffer::FrameBuffer;
+use const_format::formatcp;
 use std::sync::Arc;
-
 use tokio::io::AsyncWriteExt;
 
-use crate::framebuffer::FrameBuffer;
-
 pub const PARSER_LOOKAHEAD: usize = "PX 1234 1234 rrggbbaa\n".len(); // Longest possible command
-pub const HELP_TEXT: &[u8] = "\
+pub const HELP_TEXT: &[u8] = formatcp!("\
 Pixelflut server powered by breakwater https://github.com/sbernauer/breakwater
 Available commands:
 HELP: Show this help
 PX x y rrggbb: Color the pixel (x,y) with the given hexadecimal color rrggbb
-PX x y rrggbbaa: Color the pixel (x,y) with the given hexadecimal color rrggbb (alpha channel is ignored by default, unless breakwater is compiled with \"--feature alpha\". This is for performance reasons)
+{}
 PX x y gg: Color the pixel (x,y) with the hexadecimal color gggggg. Basically this is the same as the other commands, but is a more efficient way of filling white, black or gray areas
 PX x y: Get the color value of the pixel (x,y)
 SIZE: Get the size of the drawing surface, e.g. `SIZE 1920 1080`
 OFFSET x y: Apply offset (x,y) to all further pixel draws on this connection. This can e.g. be used to pre-calculate an image/animation and simply use the OFFSET command to move it around the screen without the need to re-calculate it
-".as_bytes();
+",
+if cfg!(feature = "alpha") {
+    "PX x y rrggbbaa: Color the pixel (x,y) with the given hexadecimal color rrggbb and a transparency of aa, where ff means draw normally on top of the existing pixel and 00 means fully transparent (no change at all)"
+} else {
+    "PX x y rrggbbaa: Color the pixel (x,y) with the given hexadecimal color rrggbb. The alpha part is discarded for performance reasons, as breakwater was compiled without the alpha feature"
+}
+).as_bytes();
 
 #[derive(Clone, Default, Debug)]
 pub struct ParserState {