diff --git a/scheme-venv b/scheme-venv
index 9f7d735..e5096d2 100755
--- a/scheme-venv
+++ b/scheme-venv
@@ -68,6 +68,7 @@ docker_tag="${venvname}-${implementation}-${rnrs}"
 scheme_cmd=""
 scheme_compile_cmd=""
 scheme_repl_cmd=""
+scheme_version_cmd="echo 0.0.0"
 scheme_type="interpreter"
 
 echo "scheme-venv version 1.0.0, scheme: ${implementation}, rnrs: ${rnrs}"
@@ -133,24 +134,29 @@ if [ "${rnrs}" = "r6rs" ]; then
     case "${implementation}" in
           "capyscheme")
             scheme_cmd="capy --r6rs -L \"${venvpath}/lib\" VENV_CAPYSCHEME_ARGS --script \"\${IF}\""
+            scheme_version_cmd="capy --help | head -n 1 | awk '{print(\$2);}'"
             scheme_repl_cmd="capy --r6rs -L \"${venvpath}/lib\""
             ;;
           "chezscheme")
             if command -v chezscheme >/dev/null 2>&1
             then
                 scheme_cmd="chezscheme --libdirs ${venvpath}/lib/.akku/lib --program \"\${IF}\""
+                scheme_version_cmd="chezscheme --version"
                 scheme_repl_cmd="chezscheme --libdirs ${venvpath}/lib/.akku/lib"
             else
                 scheme_cmd="scheme --libdirs ${venvpath}/lib/.akku/lib --program \"\${IF}\""
+                scheme_version_cmd="scheme --version"
                 scheme_repl_cmd="scheme --libdirs ${venvpath}/lib/.akku/lib"
             fi
             ;;
           "guile")
             scheme_cmd="guile --r6rs -x .sls -L \"${venvpath}/lib/.akku/lib\" -s \"\${IF}\""
+            scheme_version_cmd="guile --version | head -n 1 | awk '{print($4);}'"
             scheme_repl_cmd="guile --r6rs -x .sls -L \"${venvpath}/lib/.akku/lib\""
             ;;
           "ikarus")
             scheme_cmd="IKARUS_LIBRARY_PATH=\"${venvpath}/lib/.akku/lib\" ikarus --r6rs-script \"\${IF}\""
+            scheme_version_cmd="ikarus -v 2>&1 | head -n 1 | awk '{print($4);}' | sed 's/,//'"
             scheme_repl_cmd="IKARUS_LIBRARY_PATH=\"${venvpath}/lib/.akku/lib\" ikarus"
             ;;
           "ironscheme")
@@ -159,6 +165,7 @@ if [ "${rnrs}" = "r6rs" ]; then
             ;;
           "larceny")
             scheme_cmd="larceny -nobanner -quiet -utf8 -r6 -I \"${venvpath}/lib/.akku/lib\" \"\${IF}\""
+            scheme_version_cmd="larceny --version | awk '{print($2);}'"
             scheme_repl_cmd="larceny -nobanner -quiet -utf8 -r6 -I \"${venvpath}/lib/.akku/lib\""
             ;;
           "loko")
@@ -168,18 +175,22 @@ if [ "${rnrs}" = "r6rs" ]; then
             ;;
           "mosh")
             scheme_cmd="mosh --loadpath=\"${venvpath}/lib/.akku/lib\" \"\${IF}\""
+            scheme_version_cmd="mosh -v | head -n 1 | awk '{print(\$8);}'"
             scheme_repl_cmd="mosh --loadpath=\"${venvpath}/lib/.akku/lib\""
             ;;
           "racket")
             scheme_cmd="PLTCOLLECTS=\"${venvpath}/lib/.akku/lib\" racket -I scheme/init -l r6rs/run.rkt -S \"${venvpath}/lib/.akku/lib\" \"\${IF}\""
+            scheme_version_cmd="racket --version | awk '{print(\$4);}'"
             scheme_repl_cmd="PLTCOLLECTS=\"${venvpath}/lib/.akku/lib\" racket -I scheme/init -l r6rs/run.rkt -S \"${venvpath}/lib/.akku/lib\""
             ;;
           "sagittarius")
             scheme_cmd="sash -r6 -L \"${venvpath}/lib/.akku/lib\" \"\${IF}\""
+            scheme_version_cmd="sash -v | awk '{print(\$5);}'"
             scheme_repl_cmd="sash -r6 -L \"${venvpath}/lib/.akku/lib\""
             ;;
           "ypsilon")
             scheme_cmd="ypsilon --r6rs --sitelib \"${venvpath}/lib/.akku/lib\" --top-level-program \"\${IF}\""
+            scheme_version_cmd="ypsilon --version | awk '{print(\$1);}' | sed 's/ypsilon-//'"
             scheme_repl_cmd="ypsilon --r6rs --sitelib \"${venvpath}/lib/.akku/lib\""
             ;;
           *)
@@ -192,10 +203,12 @@ else
     case "${implementation}" in
           "capyscheme")
             scheme_cmd="capy --r7rs -L \"${venvpath}/lib\" --script \"\${IF}\""
+            scheme_version_cmd="capy --help | head -n 1 | awk '{print(\$2);}'"
             scheme_repl_cmd="capy --r7rs -L \"${venvpath}/lib\""
             ;;
           "chibi")
             scheme_cmd="chibi-scheme -I \"${venvpath}/lib\" \"\${IF}\""
+            scheme_version_cmd="chibi-scheme -V | awk '{print(\$2);}'"
             scheme_repl_cmd="chibi-scheme -I \"${venvpath}/lib\""
             ;;
           "chicken")
@@ -211,37 +224,45 @@ else
                 scheme_repl_cmd="echo \"Chicken repl not supported\" && exit 1"
                 scheme_compile_cmd="cd \"${venvpath}/lib\" && csc -static -r7rs-syntax -I${venvpath}/include -L${venvpath}/lib -o \"\${OF}\" \"\${IF}\""
             fi
+            scheme_version_cmd="csc -version | grep Version | awk '{print(\$2);}'"
             ;;
           "cyclone")
             scheme_cmd="CYCLONE_LIBRARY_PATH=\"${venvpath}/lib\" icyc -I \"${venvpath}/lib\" \"\${IF}\""
             scheme_repl_cmd="CYCLONE_LIBRARY_PATH=\"${venvpath}/lib\" icyc -I \"${venvpath}/lib\""
+            scheme_version_cmd="cyclone -v | grep Version | awk '{print(\$4);}'"
             scheme_compile_cmd="CYCLONE_LIBRARY_PATH=\"${venvpath}/lib\" cyclone -I \"${venvpath}/lib\" \"\${IF}\""
             ;;
           "foment")
             scheme_cmd="foment -I \"${venvpath}/lib\" \"\${IF}\""
+            scheme_version_cmd="foment --version | grep version | head -n 1 | awk '{print(\$2);}' | sed 's/[\")]//g'"
             scheme_repl_cmd="foment -I \"${venvpath}/lib\""
             ;;
           "gambit")
             scheme_cmd="gsi -:r7rs \"${venvpath}/lib/\" \"\${IF}\""
             scheme_repl_cmd="gsi -:r7rs \"${venvpath}/lib/\""
+            scheme_version_cmd="gsc -v | awk '{print(\$1);}'"
             scheme_compile_cmd="gsc -:r7rs -o \"\${OF}\" -exe -nopreload \"${venvpath}/lib/\" \"\${IF}\""
             ;;
           "gauche")
             scheme_cmd="gosh -r7 -I \"${venvpath}/lib\" \"\${IF}\""
+            scheme_version_cdm="gsc -v | awk '{print(\$1);}'"
             scheme_repl_cmd="gosh -r7 -I \"${venvpath}/lib\""
             ;;
           "guile")
             scheme_cmd="guile --r7rs -x .sld -C \"${venvpath}/lib\" -L \"${venvpath}/lib\" -s \"\${IF}\""
             scheme_repl_cmd="guile --r7rs -x .sld -C \"${venvpath}/lib\" -L \"${venvpath}/lib\""
+            scheme_version_cmd="guile --version | head -n 1 | awk '{print(\$4);}'"
             scheme_compile_cmd="echo \"Guile compiler not supported\" && exit 1"
             ;;
           "kawa")
             kawa_library_path=$(kawa -e "(display (get-environment-variable \"CLASSPATH\"))" | awk -F'kawa.jar' '{print $1}')
             scheme_cmd="kawa -J--add-exports=java.base/jdk.internal.foreign.abi=ALL-UNNAMED -J--add-exports=java.base/jdk.internal.foreign.layout=ALL-UNNAMED -J--add-exports=java.base/jdk.internal.foreign=ALL-UNNAMED -J--enable-native-access=ALL-UNNAMED -Dkawa.import.path=\"${venvpath}/lib/*.sld:${kawa_library_path}/*.sld\" --r7rs --full-tailcalls -f \"\${IF}\""
+            scheme_version_cmd="kawa --version | head -n 1 | awk '{print(\$2);}'"
             scheme_repl_cmd="kawa -J--add-exports=java.base/jdk.internal.foreign.abi=ALL-UNNAMED -J--add-exports=java.base/jdk.internal.foreign.layout=ALL-UNNAMED -J--add-exports=java.base/jdk.internal.foreign=ALL-UNNAMED -J--enable-native-access=ALL-UNNAMED -Dkawa.import.path=\"${venvpath}/lib/*.sld:${kawa_library_path}/*.sld\" --r7rs --full-tailcalls"
             ;;
           "larceny")
             scheme_cmd="larceny -nobanner -quiet -utf8 -r7 -I \"${venvpath}/lib\" \"\${IF}\""
+            scheme_version_cmd="larceny --version | awk '{print($2);}'"
             scheme_repl_cmd="larceny -nobanner -quiet -utf8 -r7 -I \"${venvpath}/lib\""
             ;;
           "loko")
@@ -251,6 +272,7 @@ else
             ;;
           "meevax")
             scheme_cmd="meevax -I \"${venvpath}/lib\" \"\${IF}\""
+            scheme_version_cmd="meevax --version"
             scheme_repl_cmd="meevax -I \"${venvpath}/lib\""
             ;;
           "mit-scheme")
@@ -260,30 +282,37 @@ else
             ;;
           "mosh")
             scheme_cmd="mosh --loadpath=\"${venvpath}/lib\" \"\${IF}\""
+            scheme_version_cmd="mosh -v | head -n 1 | awk '{print(\$8);}'"
             scheme_repl_cmd="mosh --loadpath=\"${venvpath}/lib\""
             ;;
           "racket")
             scheme_cmd="PLTCOLLECTS=\"${venvpath}/lib\" racket -I r7rs -S \"${venvpath}/lib\" --script \"\${IF}\""
+            scheme_version_cmd="racket --version | awk '{print(\$4);}'"
             scheme_repl_cmd="PLTCOLLECTS=\"${venvpath}/lib\" racket -I r7rs -S \"${venvpath}/lib\""
             ;;
           "sagittarius")
             scheme_cmd="sash -r7 -L \"${venvpath}/lib\" \"\${IF}\""
+            scheme_version_cmd="sash -v | awk '{print(\$5);}'"
             scheme_repl_cmd="sash -r7 -L \"${venvpath}/lib\""
             ;;
           "skint")
             scheme_cmd="skint -I \"${venvpath}/lib\" \"\${IF}\""
+            scheme_version_cmd="skint --version | grep version | awk '{print(\$2);}' | sed 's/[\")]//g'"
             scheme_repl_cmd="skint -I \"${venvpath}/lib\""
             ;;
           "stklos")
             scheme_cmd="stklos -I \"${venvpath}/lib\" \"\${IF}\""
+            scheme_version_cmd="stklos --version | head -n 1 | awk '{print(\$2);}'"
             scheme_repl_cmd="stklos -I \"${venvpath}/lib\""
             ;;
           "tr7")
             scheme_cmd="TR7_LIB_PATH=\"${venvpath}/lib:\${TR7_LIB_PATH}\" tr7i -1 \"\${IF}\""
+            scheme_version_cmd="printf '(exit)\n' | tr7i | head -n 1 | awk '{print(\$5);}'"
             scheme_repl_cmd="TR7_LIB_PATH=\"${venvpath}/lib:\${TR7_LIB_PATH}\" tr7i -1"
             ;;
           "ypsilon")
             scheme_cmd="ypsilon --r7rs --sitelib \"${venvpath}/lib\" --top-level-program \"\${IF}\""
+            scheme_version_cmd="ypsilon --version | awk '{print(\$1);}' | sed 's/ypsilon-//'"
             scheme_repl_cmd="ypsilon --r7rs --sitelib \"${venvpath}/lib\""
             ;;
           *)
@@ -383,4 +412,14 @@ EOF
 } > "${venvpath}/bin/scheme-venv-info"
 chmod +x "${venvpath}/bin/scheme-venv-info"
 
+## /bin/scheme-version
+{
+cat << EOF
+#!/bin/sh
+if [ ! "\${VENV_DEBUG}" = "" ]; then set -x; fi
+${scheme_version_cmd}
+EOF
+} > "${venvpath}/bin/scheme-version"
+chmod +x "${venvpath}/bin/scheme-version"
+
 echo "Initialized scheme-venv ${venvpath}, with ${implementation} and ${rnrs}"