Organize your workflow in CCEMUX by setting this up in computer 0. Emu Corral gives you the ability to easily add and manage your projects, hopefully contained in individual computers.

emu-corral.lua

os.pullEvent = os.pullEventRaw -- Lock down this computer, we don't really need direct access to it
local title = "Your Emus:" -- Replace this with whatever you want to have as the header of this menu
local emus = {"Project 1"} -- Your projects. 
local open, selected, ctr = nil, 1, 0 -- emulator to open, is only set when a project is selected | the project that the cursor is hovering over | the position used to center the text. Half of the value of the largest string in your projects.
local x, y = term.getSize() -- Get the size of the terminal
for i = 1, #emus do -- For each of your projects
    if (emus[i]):len() > ctr then -- If the length of this project string is larger than the current center value
        ctr  = (emus[i]):len() -- Set it to that value
    end
end

local function write(txt, id) -- Function used to center align all text.
    if id > 0 and id <= #emus then -- If the id being used is a project
        txt = id..". "..txt -- Write the computer id number next to it
    end
    term.setCursorPos((x/2)-(ctr/2), (y/2)-(#emus/2)+id) -- Set the cursor position to the right area
    term.setTextColor(colors.white) -- Set the text color properly
    term.write(txt) -- Write the text inputted
end

local function menu() -- Function used to draw the menu
    term.clear() -- Clear the screen
    write(title, -2) -- Write the menu title
    for i = 1, #emus do -- For each project
        write(emus[i], i) -- Write it using the project ID as the id parameter
    end
    write("'c' for config", #emus+2) -- Write some more options available to you, away from your projects.
    write("'d' for data", #emus+3) 
    write("'e' to edit this", #emus+4) -- You probably used this one to get here!
    write("'l' to open lua REPL", #emus+5)
end

menu() -- Draw the menu for the first time
repeat
    term.setCursorPos((x/2)-(ctr/2)-2, (y/2)-(#emus/2)+selected) -- Set the cursor position to the currently selected project
    term.setTextColor(colors.yellow) -- Set the text color to yellow
    term.write(">") -- Write the cursor
    local k = ({os.pullEvent("key")})[2] -- Pull whatever key is being pressed
    if k then
        if k == keys.enter then -- If it's the enter key
                open = selected -- Set open to selected
        elseif k == keys.down then -- If it's the down arrow
            if selected == #emus then -- If the selected value is the largest one
                selected = 0 -- Wrap back around, and account for the addition out of this block
            end
            selected = selected+1 -- Move the cursor down by one
        elseif k == keys.up then -- If it's the down arrow
            if selected == 1 then -- If the selected value is the smallest one
                selected = #emus+1 -- Wrap back around, and account for the subtraction out of this block
            end
            selected = selected-1 -- Move the cursor up by one
        elseif k >= keys.one and k <= #emus+1 and k < keys.zero then -- If the selected value is a valid number key
            selected = k-1 -- Set the selected value to the right position
            open = selected -- Automatically open it
        elseif k == keys.c then -- If it's the 'c' key
            ccemux.openConfig() -- Open the config
        elseif k == keys.d then -- If it's the 'd' key
            ccemux.openDataDir() -- Open the data directory
        elseif k == keys.l then -- If it's the 'l' key
            os.pullEvent("key_up") -- Wait for the key_up event, so that it doesn't get added in the REPL
            term.clear() -- Clear the terminal
            term.setCursorPos(1, 1) -- Set the cursor position to 1, 1
            shell.run("lua") -- Run the REPL
            menu() -- Redraw the menu after exiting
        elseif k == keys.e then -- If it's the 'e' key
            os.pullEvent("key_up") -- Wait for the key_up event, so that it doesn't get added in the editor
            shell.run("edit startup.lua") -- Open this!
            menu() -- Redraw the menu after exiting
        end
        if k ~= keys.e and k ~= keys.l then
            term.setCursorPos(({term.getCursorPos()})[1]-1, ({term.getCursorPos()})[2]) -- Set the cursor position to where the yellow arrow is
            term.write(" ") -- Remove it
        end
        if open then -- If open isn't nil
            ccemux.openEmu(open) -- Open the project desired
            open = nil -- Reset the open value
        end
    end
until true == false -- Loop forever and ever