diff --git a/lua/cc.d.tl b/lua/cc.d.tl
new file mode 100644
index 0000000..85046f7
--- /dev/null
+++ b/lua/cc.d.tl
@@ -0,0 +1,18 @@
+global sleep: function(time: number)
+
+global write: function(text: string): number
+--global print: function(...: any): number
+global printError: function(...: any)
+
+--global type ReadCompletionFunction = function(partial: string): { string } | nil
+--global read: function(replaceChar: string | nil, history: table | nil, completeFn: ReadCompletionFunction | nil, default: string | nil): string
+
+global _HOST: string
+global _CC_DEFAULT_SETTINGS: string
+
+require("types/colors")
+require("types/term")
+require("types/parallel")
+require("types/http")
+require("types/shell")
+require("types/window")
\ No newline at end of file
diff --git a/lua/framebuffer.tl b/lua/framebuffer.tl
new file mode 100644
index 0000000..c342341
--- /dev/null
+++ b/lua/framebuffer.tl
@@ -0,0 +1,132 @@
+local record ScreenContent
+    x: integer
+    y: integer
+    width: integer
+    height: integer
+    blink: boolean
+    fg: integer
+    text: {string}
+    fg_color: {string}
+    bg_color: {string}
+    palette: {integer}
+end
+
+local record Buffer
+    target: term.Redirect
+    serialize: function(): ScreenContent
+    is_dirty: function(): boolean
+    clear_dirty: function()
+end
+
+local COLOR_LOOKUP <const> : {number: integer} = {
+    [colors.white]     = 0x0,
+    [colors.orange]    = 0x1,
+    [colors.magenta]   = 0x2,
+    [colors.lightBlue] = 0x3,
+    [colors.yellow]    = 0x4,
+    [colors.lime]      = 0x5,
+    [colors.pink]      = 0x6,
+    [colors.gray]      = 0x7,
+    [colors.lightGray] = 0x8,
+    [colors.cyan]      = 0x9,
+    [colors.purple]    = 0xA,
+    [colors.blue]      = 0xB,
+    [colors.brown]     = 0xC,
+    [colors.green]     = 0xD,
+    [colors.red]       = 0xE,
+    [colors.black]     = 0xF,
+}
+
+local function wrap(parent: term.Redirect): Buffer
+    local x, y = parent.getCursorPos()
+    local width, height = parent.getSize()
+    local blink = parent.getCursorBlink()
+    local fg = COLOR_LOOKUP[parent.getTextColor()]
+    local palette: {number} = {}
+    for c = 0, 15 do
+        palette[c+1] = colors.packRGB(parent.getPaletteColor(2^c))
+    end
+
+    local win = window.create(parent, 1, 1, width, height)
+    
+    local overrides: table = {}
+    overrides.setCursorPos = function(new_x: integer, new_y: integer)
+        win.setCursorPos(new_x, new_y)
+        x = new_x
+        y = new_y
+    end
+
+    overrides.setCursorBlink = function(new_blink: boolean)
+        win.setCursorBlink(new_blink)
+        blink = new_blink
+    end
+
+    overrides.setTextColor = function(new_color: number)
+        local r = { pcall(win.setTextColor, new_color) }
+        if not r[1] then
+            error((r[2] as string):sub(8))
+        end
+        fg = COLOR_LOOKUP[new_color]
+    end
+    overrides.setTextColour = overrides.setTextColor
+
+    overrides.setPaletteColor = function(color: number, r_rgb: number, g: number | nil, b: number | nil)
+        local r = { pcall(win.setPaletteColor, color, r_rgb, g, b) }
+        if not r[1] then
+            error((r[2] as string):sub(8))
+        end
+        local index = COLOR_LOOKUP[color]
+        if g == nil then
+            palette[1 + index] = r_rgb
+        else
+            palette[1 + index] = colors.packRGB(r_rgb, g, b)
+        end
+    end
+    overrides.setPaletteColour = overrides.setPaletteColor
+
+    local target = setmetatable(overrides, { __index = win }) as term.Redirect
+
+    target.setTextColor(colors.white)
+    target.setBackgroundColor(colors.black)
+    target.setCursorPos(1,1)
+    target.clear()
+
+    local buffer: Buffer = {
+        target = target
+    }
+
+    buffer.serialize = function(): ScreenContent
+        local text: {string} = {}
+        local fg_color: {string} = {}
+        local bg_color: {string} = {}
+        for i = 1, height do
+            local t, f, b = win.getLine(i)
+            table.insert(text, t)
+            table.insert(fg_color, f)
+            table.insert(bg_color, b)
+        end
+        return {
+            x = x,
+            y = y,
+            width = width,
+            height = height,
+            blink = blink,
+            fg = fg,
+            text = text,
+            fg_color = fg_color,
+            bg_color = bg_color,
+            palette = palette
+        }
+    end
+    
+    buffer.is_dirty = function(): boolean
+        return true
+    end
+
+    buffer.clear_dirty = function() end
+
+    return buffer
+    
+end
+
+return { wrap = wrap }
\ No newline at end of file
diff --git a/lua/json.d.tl b/lua/json.d.tl
new file mode 100644
index 0000000..4449415
--- /dev/null
+++ b/lua/json.d.tl
@@ -0,0 +1,6 @@
+local record Json
+    encode: function(value: any): string
+    decode: function(str: string): any
+end
+
+return Json
\ No newline at end of file
diff --git a/lua/json.lua b/lua/json.lua
new file mode 100644
index 0000000..711ef78
--- /dev/null
+++ b/lua/json.lua
@@ -0,0 +1,388 @@
+--
+-- json.lua
+--
+-- Copyright (c) 2020 rxi
+--
+-- Permission is hereby granted, free of charge, to any person obtaining a copy of
+-- this software and associated documentation files (the "Software"), to deal in
+-- the Software without restriction, including without limitation the rights to
+-- use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+-- of the Software, and to permit persons to whom the Software is furnished to do
+-- so, subject to the following conditions:
+--
+-- The above copyright notice and this permission notice shall be included in all
+-- copies or substantial portions of the Software.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+-- SOFTWARE.
+--
+
+local json = { _version = "0.1.2" }
+
+-------------------------------------------------------------------------------
+-- Encode
+-------------------------------------------------------------------------------
+
+local encode
+
+local escape_char_map = {
+  [ "\\" ] = "\\",
+  [ "\"" ] = "\"",
+  [ "\b" ] = "b",
+  [ "\f" ] = "f",
+  [ "\n" ] = "n",
+  [ "\r" ] = "r",
+  [ "\t" ] = "t",
+}
+
+local escape_char_map_inv = { [ "/" ] = "/" }
+for k, v in pairs(escape_char_map) do
+  escape_char_map_inv[v] = k
+end
+
+
+local function escape_char(c)
+  return "\\" .. (escape_char_map[c] or string.format("u%04x", c:byte()))
+end
+
+
+local function encode_nil(val)
+  return "null"
+end
+
+
+local function encode_table(val, stack)
+  local res = {}
+  stack = stack or {}
+
+  -- Circular reference?
+  if stack[val] then error("circular reference") end
+
+  stack[val] = true
+
+  if rawget(val, 1) ~= nil or next(val) == nil then
+    -- Treat as array -- check keys are valid and it is not sparse
+    local n = 0
+    for k in pairs(val) do
+      if type(k) ~= "number" then
+        error("invalid table: mixed or invalid key types")
+      end
+      n = n + 1
+    end
+    if n ~= #val then
+      error("invalid table: sparse array")
+    end
+    -- Encode
+    for i, v in ipairs(val) do
+      table.insert(res, encode(v, stack))
+    end
+    stack[val] = nil
+    return "[" .. table.concat(res, ",") .. "]"
+
+  else
+    -- Treat as an object
+    for k, v in pairs(val) do
+      if type(k) ~= "string" then
+        error("invalid table: mixed or invalid key types")
+      end
+      table.insert(res, encode(k, stack) .. ":" .. encode(v, stack))
+    end
+    stack[val] = nil
+    return "{" .. table.concat(res, ",") .. "}"
+  end
+end
+
+
+local function encode_string(val)
+  return '"' .. val:gsub('[%z\1-\31\\"]', escape_char) .. '"'
+end
+
+
+local function encode_number(val)
+  -- Check for NaN, -inf and inf
+  if val ~= val or val <= -math.huge or val >= math.huge then
+    error("unexpected number value '" .. tostring(val) .. "'")
+  end
+  return string.format("%.14g", val)
+end
+
+
+local type_func_map = {
+  [ "nil"     ] = encode_nil,
+  [ "table"   ] = encode_table,
+  [ "string"  ] = encode_string,
+  [ "number"  ] = encode_number,
+  [ "boolean" ] = tostring,
+}
+
+
+encode = function(val, stack)
+  local t = type(val)
+  local f = type_func_map[t]
+  if f then
+    return f(val, stack)
+  end
+  error("unexpected type '" .. t .. "'")
+end
+
+
+function json.encode(val)
+  return ( encode(val) )
+end
+
+
+-------------------------------------------------------------------------------
+-- Decode
+-------------------------------------------------------------------------------
+
+local parse
+
+local function create_set(...)
+  local res = {}
+  for i = 1, select("#", ...) do
+    res[ select(i, ...) ] = true
+  end
+  return res
+end
+
+local space_chars   = create_set(" ", "\t", "\r", "\n")
+local delim_chars   = create_set(" ", "\t", "\r", "\n", "]", "}", ",")
+local escape_chars  = create_set("\\", "/", '"', "b", "f", "n", "r", "t", "u")
+local literals      = create_set("true", "false", "null")
+
+local literal_map = {
+  [ "true"  ] = true,
+  [ "false" ] = false,
+  [ "null"  ] = nil,
+}
+
+
+local function next_char(str, idx, set, negate)
+  for i = idx, #str do
+    if set[str:sub(i, i)] ~= negate then
+      return i
+    end
+  end
+  return #str + 1
+end
+
+
+local function decode_error(str, idx, msg)
+  local line_count = 1
+  local col_count = 1
+  for i = 1, idx - 1 do
+    col_count = col_count + 1
+    if str:sub(i, i) == "\n" then
+      line_count = line_count + 1
+      col_count = 1
+    end
+  end
+  error( string.format("%s at line %d col %d", msg, line_count, col_count) )
+end
+
+
+local function codepoint_to_utf8(n)
+  -- http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=iws-appendixa
+  local f = math.floor
+  if n <= 0x7f then
+    return string.char(n)
+  elseif n <= 0x7ff then
+    return string.char(f(n / 64) + 192, n % 64 + 128)
+  elseif n <= 0xffff then
+    return string.char(f(n / 4096) + 224, f(n % 4096 / 64) + 128, n % 64 + 128)
+  elseif n <= 0x10ffff then
+    return string.char(f(n / 262144) + 240, f(n % 262144 / 4096) + 128,
+                       f(n % 4096 / 64) + 128, n % 64 + 128)
+  end
+  error( string.format("invalid unicode codepoint '%x'", n) )
+end
+
+
+local function parse_unicode_escape(s)
+  local n1 = tonumber( s:sub(1, 4),  16 )
+  local n2 = tonumber( s:sub(7, 10), 16 )
+   -- Surrogate pair?
+  if n2 then
+    return codepoint_to_utf8((n1 - 0xd800) * 0x400 + (n2 - 0xdc00) + 0x10000)
+  else
+    return codepoint_to_utf8(n1)
+  end
+end
+
+
+local function parse_string(str, i)
+  local res = ""
+  local j = i + 1
+  local k = j
+
+  while j <= #str do
+    local x = str:byte(j)
+
+    if x < 32 then
+      decode_error(str, j, "control character in string")
+
+    elseif x == 92 then -- `\`: Escape
+      res = res .. str:sub(k, j - 1)
+      j = j + 1
+      local c = str:sub(j, j)
+      if c == "u" then
+        local hex = str:match("^[dD][89aAbB]%x%x\\u%x%x%x%x", j + 1)
+                 or str:match("^%x%x%x%x", j + 1)
+                 or decode_error(str, j - 1, "invalid unicode escape in string")
+        res = res .. parse_unicode_escape(hex)
+        j = j + #hex
+      else
+        if not escape_chars[c] then
+          decode_error(str, j - 1, "invalid escape char '" .. c .. "' in string")
+        end
+        res = res .. escape_char_map_inv[c]
+      end
+      k = j + 1
+
+    elseif x == 34 then -- `"`: End of string
+      res = res .. str:sub(k, j - 1)
+      return res, j + 1
+    end
+
+    j = j + 1
+  end
+
+  decode_error(str, i, "expected closing quote for string")
+end
+
+
+local function parse_number(str, i)
+  local x = next_char(str, i, delim_chars)
+  local s = str:sub(i, x - 1)
+  local n = tonumber(s)
+  if not n then
+    decode_error(str, i, "invalid number '" .. s .. "'")
+  end
+  return n, x
+end
+
+
+local function parse_literal(str, i)
+  local x = next_char(str, i, delim_chars)
+  local word = str:sub(i, x - 1)
+  if not literals[word] then
+    decode_error(str, i, "invalid literal '" .. word .. "'")
+  end
+  return literal_map[word], x
+end
+
+
+local function parse_array(str, i)
+  local res = {}
+  local n = 1
+  i = i + 1
+  while 1 do
+    local x
+    i = next_char(str, i, space_chars, true)
+    -- Empty / end of array?
+    if str:sub(i, i) == "]" then
+      i = i + 1
+      break
+    end
+    -- Read token
+    x, i = parse(str, i)
+    res[n] = x
+    n = n + 1
+    -- Next token
+    i = next_char(str, i, space_chars, true)
+    local chr = str:sub(i, i)
+    i = i + 1
+    if chr == "]" then break end
+    if chr ~= "," then decode_error(str, i, "expected ']' or ','") end
+  end
+  return res, i
+end
+
+
+local function parse_object(str, i)
+  local res = {}
+  i = i + 1
+  while 1 do
+    local key, val
+    i = next_char(str, i, space_chars, true)
+    -- Empty / end of object?
+    if str:sub(i, i) == "}" then
+      i = i + 1
+      break
+    end
+    -- Read key
+    if str:sub(i, i) ~= '"' then
+      decode_error(str, i, "expected string for key")
+    end
+    key, i = parse(str, i)
+    -- Read ':' delimiter
+    i = next_char(str, i, space_chars, true)
+    if str:sub(i, i) ~= ":" then
+      decode_error(str, i, "expected ':' after key")
+    end
+    i = next_char(str, i + 1, space_chars, true)
+    -- Read value
+    val, i = parse(str, i)
+    -- Set
+    res[key] = val
+    -- Next token
+    i = next_char(str, i, space_chars, true)
+    local chr = str:sub(i, i)
+    i = i + 1
+    if chr == "}" then break end
+    if chr ~= "," then decode_error(str, i, "expected '}' or ','") end
+  end
+  return res, i
+end
+
+
+local char_func_map = {
+  [ '"' ] = parse_string,
+  [ "0" ] = parse_number,
+  [ "1" ] = parse_number,
+  [ "2" ] = parse_number,
+  [ "3" ] = parse_number,
+  [ "4" ] = parse_number,
+  [ "5" ] = parse_number,
+  [ "6" ] = parse_number,
+  [ "7" ] = parse_number,
+  [ "8" ] = parse_number,
+  [ "9" ] = parse_number,
+  [ "-" ] = parse_number,
+  [ "t" ] = parse_literal,
+  [ "f" ] = parse_literal,
+  [ "n" ] = parse_literal,
+  [ "[" ] = parse_array,
+  [ "{" ] = parse_object,
+}
+
+
+parse = function(str, idx)
+  local chr = str:sub(idx, idx)
+  local f = char_func_map[chr]
+  if f then
+    return f(str, idx)
+  end
+  decode_error(str, idx, "unexpected character '" .. chr .. "'")
+end
+
+
+function json.decode(str)
+  if type(str) ~= "string" then
+    error("expected argument of type string, got " .. type(str))
+  end
+  local res, idx = parse(str, next_char(str, 1, space_chars, true))
+  idx = next_char(str, idx, space_chars, true)
+  if idx <= #str then
+    decode_error(str, idx, "trailing garbage")
+  end
+  return res
+end
+
+
+return json
diff --git a/lua/main.tl b/lua/main.tl
new file mode 100644
index 0000000..a64d32b
--- /dev/null
+++ b/lua/main.tl
@@ -0,0 +1,35 @@
+local json = require("json")
+local fb = require("framebuffer")
+local ENDPOINT <const> = "http://localhost:8000/monitoring"
+
+local orig_native = term.native
+
+local buffer = fb.wrap(orig_native())
+
+term.native = function(): term.Redirect
+    return buffer.target
+end
+
+term.redirect(buffer.target as term.Redirect)
+
+local function report()
+    while true do
+        local body = json.encode({
+            screen = buffer.serialize()
+        })
+        local headers = {
+            ["Content-Type"] = "application/json"
+        }
+        local r = { pcall(http.post, ENDPOINT .. "/ping", body, headers) }
+        sleep(1)
+    end
+end
+
+local function run_shell()
+    shell.run("shell")
+end
+
+parallel.waitForAny(report, run_shell)
+
+term.native = orig_native
+term.redirect(term.native())
diff --git a/lua/tlconfig.lua b/lua/tlconfig.lua
new file mode 100644
index 0000000..52911f6
--- /dev/null
+++ b/lua/tlconfig.lua
@@ -0,0 +1,4 @@
+return {
+    global_env_def = "cc",
+    gen_target = "5.1",
+}
\ No newline at end of file
diff --git a/lua/types/colors.d.tl b/lua/types/colors.d.tl
new file mode 100644
index 0000000..a6e122d
--- /dev/null
+++ b/lua/types/colors.d.tl
@@ -0,0 +1,51 @@
+global record colors
+    white: number
+    orange: number
+    magenta: number
+    lightBlue: number
+    yellow: number
+    lime: number
+    pink: number
+    gray: number
+    lightGray: number
+    cyan: number
+    purple: number
+    blue: number
+    brown: number
+    green: number
+    red: number
+    black: number
+
+    combine: function(...: number): number
+    subtract: function(colors: number, ...: number): number
+    test: function(colors: number, color: number): boolean
+    packRGB: function(r: number, g: number, b: number): number
+    unpackRGB: function(rgb: number): number, number, number
+    toBlit: function(color: number): string
+end
+
+global record colours
+    white: number
+    orange: number
+    magenta: number
+    lightBlue: number
+    yellow: number
+    lime: number
+    pink: number
+    grey: number
+    lightGrey: number
+    cyan: number
+    purple: number
+    blue: number
+    brown: number
+    green: number
+    red: number
+    black: number
+
+    combine: function(...: number): number
+    subtract: function(colors: number, ...: number): number
+    test: function(colors: number, color: number): boolean
+    packRGB: function(r: number, g: number, b: number): number
+    unpackRGB: function(rgb: number): number, number, number
+    toBlit: function(color: number): string
+end
\ No newline at end of file
diff --git a/lua/types/http.d.tl b/lua/types/http.d.tl
new file mode 100644
index 0000000..26677bb
--- /dev/null
+++ b/lua/types/http.d.tl
@@ -0,0 +1,70 @@
+global record http
+    record Response
+        getResponseCode: function(): integer, string
+        getResponseHeaders: function(): {string: string}
+        read: function(count: integer | nil): integer, string | nil
+        readAll: function(): string | nil
+        readLine: function(withTrailing: boolean | nil): string | nil
+        seek: function(
+            whence: string | nil,
+            offset: integer | nil
+        ): integer | nil, nil | string
+        close: function()
+    end
+
+    record _RequestParams
+        url: string
+        body: string | nil
+        headers: {string: string} | nil
+        binary: boolean | nil
+        method: string | nil
+        redirect: boolean | nil
+    end
+
+    request: function(
+        url_or_params: string | _RequestParams,
+        body: string | nil,
+        headers: {string: string} | nil,
+        binary: boolean | nil
+    )
+
+    record _GetParams
+        url: string
+        headers: {string: string} | nil
+        binary: boolean | nil
+        method: string | nil
+        redirect: boolean | nil
+    end
+
+    get: function(
+        url_or_params: string | _GetParams,
+        headers: {string: string} | nil,
+        binary: boolean | nil
+    ): Response | nil, nil | string, nil | Response
+
+    post: function(
+        url_or_params: string | _RequestParams,
+        body: string | nil,
+        headers: {string: string} | nil,
+        binary: boolean | nil
+    ): Response | nil, nil | string, nil | Response
+
+    checkURLAsync: function(url: string): boolean, string | nil
+    checkURL: function(url: string): boolean, string | nil
+
+    record Websocket
+        receive: function(timeout: number | nil): string | nil, nil | boolean
+        send: function(message: any, binary: boolean | nil)
+        close: function()
+    end
+
+    websocket: function(
+        url: string,
+        headers: {string: string} | nil
+    ): Websocket | boolean, nil | string
+
+    websocketAsync: function(
+        url: string,
+        headers: {string: string} | nil
+    )
+end
\ No newline at end of file
diff --git a/lua/types/parallel.d.tl b/lua/types/parallel.d.tl
new file mode 100644
index 0000000..fbb3a80
--- /dev/null
+++ b/lua/types/parallel.d.tl
@@ -0,0 +1,4 @@
+global record parallel
+    waitForAny: function(...: function)
+    waitForAll: function(...: function)
+end
\ No newline at end of file
diff --git a/lua/types/shell.d.tl b/lua/types/shell.d.tl
new file mode 100644
index 0000000..51375ab
--- /dev/null
+++ b/lua/types/shell.d.tl
@@ -0,0 +1,33 @@
+global record shell
+    execute: function(command: string, ...: string): boolean
+    run: function(...: string): boolean
+    exit: function()
+    dir: function(): string
+    setDir: function(dir: string)
+    path: function(): string
+    setPath: function(path: string)
+    resolve: function(path: string): string
+    resolveProgram: function(command: string): string | nil
+    programs: function(include_hidden: boolean | nil): {string}
+    complete: function(sLine: string): {string} | nil
+    completeProgram: function(program: string): {string}
+    
+    type _CompletionFunction = function(
+        shell: table,
+        index: integer,
+        argument: string,
+        previous: {string}
+    ): {string} | nil
+    setCompletionFunction: function(program: string, complete: _CompletionFunction)
+
+    record _CompletionInfo
+        fnComplete: function
+    end
+    getCompletionInfo: function(): {string: _CompletionInfo}
+    getRunningProgram: function(): string
+    setAlias: function(command: string, program: string)
+    clearAlias: function(command: string)
+    aliases: function(): {string:string}
+    openTab: function(...: string): integer
+    switchTab: function(id: integer)
+end
\ No newline at end of file
diff --git a/lua/types/term.d.tl b/lua/types/term.d.tl
new file mode 100644
index 0000000..0f790a0
--- /dev/null
+++ b/lua/types/term.d.tl
@@ -0,0 +1,65 @@
+global record term
+
+  record Redirect
+    write: function(text: string)
+    blit: function(text: string, textColor: string, backgroundColor: string)
+    scroll: function(y: integer)
+    clear: function()
+    clearLine: function()
+
+    getCursorPos: function(): integer, integer
+    setCursorPos: function(x: integer, y: integer)
+    getCursorBlink: function(): boolean
+    setCursorBlink: function(blink: boolean)
+    getSize: function(): integer, integer
+    
+    isColor: function(): boolean
+    isColour: function(): boolean
+    getTextColor: function(): number
+    getTextColour: function(): number
+    setTextColor: function(color: number)
+    setTextColour: function(colour: number)
+    getBackgroundColor: function(): number
+    getBackgroundColour: function(): number
+    setBackgroundColor: function(color: number)
+    setBackgroundColour: function(colour: number)
+    getPaletteColor: function(color: number): number, number, number
+    getPaletteColour: function(colour: number): number, number, number
+    setPaletteColour: function(color: number, r_rgb: number, g: number | nil, b: number | nil)
+    setPaletteColor: function(colour: number, r_rgb: number, g: number | nil, b: number | nil)
+  end
+
+  write: function(text: string)
+  blit: function(text: string, textColor: string, backgroundColor: string)
+  scroll: function(y: integer)
+  clear: function()
+  clearLine: function()
+
+  getCursorPos: function(): integer, integer
+  setCursorPos: function(x: integer, y: integer)
+  getCursorBlink: function(): boolean
+  setCursorBlink: function(blink: boolean)
+  getSize: function(): integer, integer
+  
+  isColor: function(): boolean
+  isColour: function(): boolean
+  getTextColor: function(): number
+  getTextColour: function(): number
+  setTextColor: function(color: number)
+  setTextColour: function(colour: number)
+  getBackgroundColor: function(): number
+  getBackgroundColour: function(): number
+  setBackgroundColor: function(color: number)
+  setBackgroundColour: function(colour: number)
+  getPaletteColor: function(color: number): number, number, number
+  getPaletteColour: function(colour: number): number, number, number
+  setPaletteColour: function(color: number, r_rgb: number, g: number | nil, b: number | nil)
+  setPaletteColor: function(colour: number, r_rgb: number, g: number | nil, b: number | nil)
+
+  nativePaletteColor: function(color: number): number, number, number
+  nativePaletteColour: function(colour: number): number, number, number
+
+  redirect: function(target: Redirect): Redirect
+  current: function(): Redirect
+  native: function(): Redirect
+end
\ No newline at end of file
diff --git a/lua/types/window.d.tl b/lua/types/window.d.tl
new file mode 100644
index 0000000..afd6d68
--- /dev/null
+++ b/lua/types/window.d.tl
@@ -0,0 +1,39 @@
+global record window
+    record Window
+        write: function(text: string)
+        blit: function(text: string, textColor: string, backgroundColor: string)
+        scroll: function(y: integer)
+        clear: function()
+        clearLine: function()
+
+        getCursorPos: function(): integer, integer
+        setCursorPos: function(x: integer, y: integer)
+        getCursorBlink: function(): boolean
+        setCursorBlink: function(blink: boolean)
+        getSize: function(): integer, integer
+        
+        isColor: function(): boolean
+        isColour: function(): boolean
+        getTextColor: function(): number
+        getTextColour: function(): number
+        setTextColor: function(color: number)
+        setTextColour: function(colour: number)
+        getBackgroundColor: function(): number
+        getBackgroundColour: function(): number
+        setBackgroundColor: function(color: number)
+        setBackgroundColour: function(colour: number)
+        getPaletteColor: function(color: number): number, number, number
+        getPaletteColour: function(colour: number): number, number, number
+        setPaletteColour: function(color: number, r_rgb: number, g: number | nil, b: number | nil)
+        setPaletteColor: function(colour: number, r_rgb: number, g: number | nil, b: number | nil)
+        
+        getLine: function(y: integer): string, string, string
+        setVisible: function(visible: boolean)
+        isVisible: function(): boolean
+        redraw: function()
+        getPosition: function(): integer, integer
+        reposition: function(new_x: integer, new_y: integer, new_width: integer | nil, new_height: integer | nil, new_parent: term.Redirect | nil)
+    end
+
+    create: function(parent: term.Redirect, x: integer, y: integer, width: integer, height: integer, startVisible: boolean | nil): Window
+end
\ No newline at end of file
diff --git a/server/server/__init__.py b/server/server/__init__.py
index b485732..2b52354 100644
--- a/server/server/__init__.py
+++ b/server/server/__init__.py
@@ -6,12 +6,14 @@ from .settings import settings
 from .user import user_auth
 from .map_tiles import map_tiles, map_meta
 from .templates import j2env
+from .monitoring import monitoring
 
 app = FastAPI()
 
 app.mount("/user/", user_auth)
 app.mount("/map/", map_meta)
 app.mount("/tiles/", map_tiles)
+app.mount("/monitoring/", monitoring)
 
 frontend = FastAPI()
 
diff --git a/server/server/monitoring.py b/server/server/monitoring.py
new file mode 100644
index 0000000..933d645
--- /dev/null
+++ b/server/server/monitoring.py
@@ -0,0 +1,25 @@
+import binascii
+
+from fastapi import FastAPI, Request
+from pydantic import BaseModel
+monitoring = FastAPI()
+
+class ScreenContent(BaseModel):
+    x: int
+    y: int
+    width: int
+    height: int
+    blink: bool
+    fg: int
+    text: list[str]
+    fg_color: list[str]
+    bg_color: list[str]
+
+class Ping(BaseModel):
+    screen: ScreenContent
+
+@monitoring.post("/ping")
+async def ping(request: Request, data: Ping):
+    print("[PING]")
+    for line in data.screen.text:
+        print(line)
\ No newline at end of file