diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index e378376..456ce3a 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -7,11 +7,12 @@ on:
 jobs:
   gen:
     runs-on: ubuntu-latest
+    needs: build
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-go@v2
       - name: Run docgen
         run: go run cmd/docgen/docgen.go
+      - name: Run Lua docgen
+        run: ./hilbish cmd/docgen/docgen.lua
       - name: Commit new docs
         uses: stefanzweifel/git-auto-commit-action@v4
         with:
diff --git a/.gitignore b/.gitignore
index e2207a5..b2be7c4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@
 hilbish
 !docs/api/hilbish
 docgen
+!cmd/docgen
 
 .vim
 petals/
diff --git a/cmd/docgen/docgen.lua b/cmd/docgen/docgen.lua
new file mode 100644
index 0000000..82719a4
--- /dev/null
+++ b/cmd/docgen/docgen.lua
@@ -0,0 +1,67 @@
+local fs = require 'fs'
+local emmyPattern = '^%-%-%- (.+)'
+local pieces = {}
+
+local files = fs.readdir 'nature'
+for _, fname in ipairs(files) do
+	local isScript = fname:match'%.lua$'
+	if not isScript then goto continue end
+
+	local f = io.open(string.format('nature/%s', fname))
+	local header = f:read '*l'
+	if not header:match(emmyPattern) then goto continue end
+
+	local iface = header:match(emmyPattern)
+	pieces[iface] = {}
+
+	local docPiece = {}
+
+	for line in f:lines() do
+		if line == header then goto continue2 end
+		if not line:match(emmyPattern) then
+			if line:match '^function' then
+				local pattern = (string.format('^function %s.', iface) .. '(%w+)')
+				local funcName = line:match(pattern)
+				pieces[iface][funcName] = docPiece
+			end
+			docPiece = {}
+			goto continue2
+		end
+
+		table.insert(docPiece, line)
+		::continue2::
+	end
+	::continue::
+end
+
+for iface, dps in pairs(pieces) do
+	local mod = iface:match '(%w+)%.'
+	local path = string.format('docs/api/%s/%s.md', mod, iface)
+	local f <close> = io.open(path, 'a+')
+
+	for func, docs in pairs(dps) do
+		local params = table.filter(docs, function(t)
+			return t:match '^%-%-%- @param'
+		end)
+		f:write(string.format('## %s(', func))
+		for i, str in ipairs(params) do
+			if i ~= 1 then
+				f:write ', '
+			end
+			f:write(str:match '^%-%-%- @param ([%w]+) ')
+		end
+		f:write(')\n')
+
+		for _, str in ipairs(docs) do
+			if not str:match '^%-%-%- @' then
+				f:write(str:match '^%-%-%- (.+)' .. '\n')
+			end	
+		end
+		f:write('\n')
+	end
+	f:flush()
+end
+
+
+
+
diff --git a/docs/api/hilbish/hilbish.runner.md b/docs/api/hilbish/hilbish.runner.md
index 68ffdc6..ec8a652 100644
--- a/docs/api/hilbish/hilbish.runner.md
+++ b/docs/api/hilbish/hilbish.runner.md
@@ -29,3 +29,20 @@ or `load`, but is appropriated for the runner interface.
 Runs a command in Hilbish's shell script interpreter.
 This is the equivalent of using `source`.
 
+## setCurrent(name)
+Sets the current interactive/command line runner mode.
+
+## add(name, runner)
+Adds a runner to the table of available runners. If runner is a table,
+it must have the run function in it.
+
+## get(name)
+Get a runner by name.
+
+## set(name, runner)
+Sets a runner by name. The runner table must have the run function in it.
+
+## exec(cmd, runnerName)
+Executes cmd with a runner. If runnerName isn't passed, it uses
+the user's current runner.
+