diff --git a/api/main.go b/api/main.go
index ecebec9..446f3e4 100644
--- a/api/main.go
+++ b/api/main.go
@@ -71,9 +71,11 @@ func Execute(res http.ResponseWriter, req *http.Request) {
         "c",
         "cpp", "c++",
         "csharp", "cs", "c#",
+        "deno", "denojs", "denots",
         "elixir", "exs",
         "emacs", "elisp", "el",
         "go",
+        "haskell", "hs",
         "java",
         "jelly",
         "julia", "jl",
@@ -148,10 +150,14 @@ func launch(request Inbound, res http.ResponseWriter) {
         execlang = "cpp"
     case "cs", "c#":
         execlang = "csharp"
+    case "denojs", "denots":
+        execlang = "deno"
     case "el", "elisp":
         execlang = "emacs"
     case "exs":
         execlang = "elixir"
+    case "hs":
+        execlang = "haskell"
     case "asm":
         execlang = "nasm"
     case "asm64":
diff --git a/lxc/execute b/lxc/execute
index de824e1..5e71f4a 100755
--- a/lxc/execute
+++ b/lxc/execute
@@ -66,9 +66,15 @@ case "$lang" in
 "go")
     bin=go
     ;;
+"haskell" | "hs")
+    bin=haskell
+    ;;
 "java")
     bin=java
     ;;
+"jelly")
+    bin=jelly
+    ;;
 "julia" | "jl")
     bin=julia
     ;;
@@ -120,9 +126,6 @@ case "$lang" in
 "typescript" | "ts")
     bin=typescript
     ;;
-"haskell" | "hs")
-    bin=haskell
-    ;;
 *)
     echo "invalid language"
     exit
diff --git a/lxc/executors/brainfuck b/lxc/executors/brainfuck
old mode 100644
new mode 100755
diff --git a/lxc/executors/deno b/lxc/executors/deno
old mode 100644
new mode 100755
diff --git a/lxc/executors/haskell b/lxc/executors/haskell
old mode 100644
new mode 100755
diff --git a/lxc/executors/lua b/lxc/executors/lua
old mode 100644
new mode 100755
diff --git a/readme.md b/readme.md
index aecd358..2c3a7b3 100644
--- a/readme.md
+++ b/readme.md
@@ -44,6 +44,7 @@ lxc-create -t download -n piston -- --dist ubuntu --release bionic --arch amd64
 echo 'source /opt/.profile' >> /opt/.bashrc
 echo 'export HOME=/opt' >> /opt/.profile
 echo 'export TERM=linux' >> /opt/.profile
+echo 'export PATH=$PATH:/opt/.local/bin' >> /opt/.profile
 export HOME=/opt
 export TERM=linux
 sed -i 's/\/root/\/opt/' /etc/passwd
@@ -159,9 +160,11 @@ echo 'export PATH=$PATH:/opt/java/jdk-14/bin' >> /opt/.profile
 source /opt/.profile
 
 # install jelly
-git clone -q https://github.com/DennisMitchell/jellylanguage.git
-cd jellylanguage
-pip3 install --upgrade --user .
+cd /opt && mkdir jelly && cd jelly
+wget https://github.com/DennisMitchell/jellylanguage/archive/master.zip
+unzip master.zip
+cd jellylanguage-master
+pip3.8 install --upgrade --user .
 
 # install julia
 # final binary: /opt/julia/julia-1.5.0/bin/julia
@@ -231,6 +234,7 @@ apt install -y ghc
 # install deno
 # final binary: /opt/.deno/bin/deno
 # get version: /opt/.deno/bin/deno --version
+cd /opt && mkdir deno && cd deno
 curl -fsSL https://deno.land/x/install/install.sh | sh
 echo 'export DENO_INSTALL="/opt/.deno"' >> /opt/.profile
 echo 'export PATH="$DENO_INSTALL/bin:$PATH"' >> /opt/.profile