local function dbg(item)
    local function indent(indentation)
        return string.rep(" ", indentation)
    end

    local function dbg_indent(item_, indentation)
        local result = ""
        if type(item_) == "table" then
            result = "{"
            for key, value in pairs(item_) do
                result = result
                    .. "\n" .. indent(indentation + 1)
                    .. dbg_indent(key, indentation + 1) .. ": "
                    .. dbg_indent(value, indentation + 1)
            end
            result = result
                .. "\n" .. indent(indentation) .. "}"
        elseif type(item_) == "string" then
            result = "\"" .. item_ .. "\""
        else
            result = tostring(item_)
        end
        return result
    end

    print(dbg_indent(item, 0))
    return item
end

local function new_config(name)
    local path = "/etc/" .. name

    local function read_key_in_line(line, key)
        local prefix = key .. ":"
        local prefix_len = string.len(prefix)
        local actual = string.sub(line, 0, prefix_len)
        if not (prefix == actual) then return nil end
        local value = string.sub(line, prefix_len + 1)
        return value
    end

    local function get(key, default)
        local file = fs.open(path, "r")
        if file == nil then return default end
        while true do
            local line = file.readLine()
            if line == nil then return default end
            local value = read_key_in_line(line, key)
            if not (value == nil) then return value end
        end
    end

    local function get_num(key, default)
        local str = get(key, nil)
        if str == nil then return default end
        local result = tonumber(str)
        if result == nil then
            error("Tried to parse conf '" .. path .. "'\nkey \"" .. key .. "\": \"" .. str .. "\"  as number.")
        end
        return result
    end

    return { get = get, get_num = get_num }
end