Multiple changes:

- Move to a Python process for the LanguageLink client [fixes #1, presumably]
- Finish a first rough draft of the booklet [fixes #4]

src/Carp/CarpProcess.class.st

@@ -11,26 +11,27 @@ Class {
 	#category : #'Carp-Processes'
 }
 
+{ #category : #accessing }
+CarpProcess class >> program [
+	^ 'carp'
+]
+
 { #category : #accessing }
 CarpProcess class >> resolveCarpPath [
 	| proc |
 	
 	proc := GtSubprocessWithInMemoryOutput new
 				command: 'which';
-				arguments: { 'carp' }.
+				arguments: { self program}.
 	CarpPlatform subProcessEnvironmentDictionary keysAndValuesDo: [ :key :value |
 		proc environmentAt: key put: value ].
 	proc runAndWait.
 	(#(0 1) includes: proc exitCode) ifFalse:
-		[ self error: 'Unable to request carp location' ].
+		[ self error: 'Unable to request', self program, ' location' ].
 	^ proc stdout trim asFileReference
 
 ]
 
-{ #category : #accessing }
-CarpProcess class >> resolveNodejsPath [
-]
-
 { #category : #accessing }
 CarpProcess class >> serverPath [
 	^ CarpPath 
@@ -89,12 +90,17 @@ CarpProcess >> processArguments [
 	self settings serverDebugMode ifTrue: 
 		[ args add: '--inspect' ].
 	args 
-		add: (self workingDirectory / 'src/languagelink.carp') resolve fullName;
+		add: (self workingDirectory / self programFile) resolve fullName;
 		add: self settings serverSocketAddress port asString;
 		add: self settings clientSocketAddress port asString.
 	^ args
 ]
 
+{ #category : #accessing }
+CarpProcess >> programFile [
+	^ 'src/languagelink.carp'
+]
+
 { #category : #accessing }
 CarpProcess >> serverPath [
 	| fileReference |