# Amalgamate The standard RETRO system is built using the Nga VM[1] and an image file. The Python implementation consists of several files, but it's nice to have a single file copy for easier deployment. This tool combines the pieces into a single source file. Output will be written to stdout. ## Code Extract and generate the single file source. ~~~ {{ :include-file ASCII:SPACE s:tokenize #1 a:fetch 'vm/nga-python/ s:prepend '.py s:append here swap file:slurp here s:put ; :source:line dup 'from_ s:begins-with? [ include-file ] [ s:put nl ] choose ; ---reveal--- :amalgamate 'vm/nga-python/retro.py [ source:line ] file:for-each-line ; }} amalgamate ~~~