diff --git a/pocket/iocontrol.lua b/pocket/iocontrol.lua
index aeb2cd7..df3fd41 100644
--- a/pocket/iocontrol.lua
+++ b/pocket/iocontrol.lua
@@ -17,7 +17,6 @@ local ENERGY_UNITS = types.ENERGY_SCALE_UNITS
 local TEMP_SCALE = types.TEMP_SCALE
 local TEMP_UNITS = types.TEMP_SCALE_UNITS
 
----@todo nominal trip time is ping (0ms to 10ms usually)
 local WARN_TT = 40
 local HIGH_TT = 80
 
@@ -86,10 +85,8 @@ function iocontrol.init_core(pkt_comms, nav, cfg)
 
         get_tone_states = function () comms.diag__get_alarm_tones() end,
 
-        ready_warn = nil,       ---@type TextBox
-        tone_buttons = {},      ---@type SwitchButton[]
-        alarm_buttons = {},     ---@type Checkbox[]
-        tone_indicators = {}    ---@type IndicatorLight[] indicators to update from supervisor tone states
+        tone_buttons = {}, ---@type SwitchButton[]
+        alarm_buttons = {} ---@type Checkbox[]
     }
 
     -- computer list
diff --git a/pocket/iorx.lua b/pocket/iorx.lua
index cbb2c01..bfcc1f9 100644
--- a/pocket/iorx.lua
+++ b/pocket/iorx.lua
@@ -60,7 +60,6 @@ local function _record_multiblock_status(faulted, data, ps)
     ps.publish("formed", data.formed)
     ps.publish("faulted", faulted)
 
-    ---@todo revisit this
     if data.build then
         for key, val in pairs(data.build) do ps.publish(key, val) end
     end
diff --git a/pocket/pocket.lua b/pocket/pocket.lua
index 5e227f3..133e26d 100644
--- a/pocket/pocket.lua
+++ b/pocket/pocket.lua
@@ -88,7 +88,7 @@ local APP_ID = {
     -- core UI
     ROOT = 1,
     LOADER = 2,
-    -- main app pages
+    -- main apps
     UNITS = 3,
     FACILITY = 4,
     CONTROL = 5,
@@ -97,12 +97,11 @@ local APP_ID = {
     GUIDE = 8,
     ABOUT = 9,
     RADMON = 10,
-    -- diagnostic app pages
+    -- diagnostic apps
     ALARMS = 11,
     COMPS = 12,
-    -- other
-    DUMMY = 13,
-    NUM_APPS = 13
+    -- count
+    NUM_APPS = 12
 }
 
 pocket.APP_ID = APP_ID
@@ -677,6 +676,7 @@ function pocket.comms(version, nic, sv_watchdog, api_watchdog, nav)
     ---@param packet mgmt_frame|crdn_frame|nil
     function public.handle_packet(packet)
         local diag = iocontrol.get_db().diag
+        local ps   = iocontrol.get_db().ps
 
         if packet ~= nil then
             local l_chan   = packet.scada_frame.local_channel()
@@ -928,23 +928,23 @@ function pocket.comms(version, nic, sv_watchdog, api_watchdog, nav)
                         elseif packet.type == MGMT_TYPE.DIAG_TONE_GET then
                             if _check_length(packet, 8) then
                                 for i = 1, #packet.data do
-                                    diag.tone_test.tone_indicators[i].update(packet.data[i] == true)
+                                    ps.publish("alarm_tone_" .. i, packet.data[i] == true)
                                 end
                             end
                         elseif packet.type == MGMT_TYPE.DIAG_TONE_SET then
                             if packet.length == 1 and packet.data[1] == false then
-                                diag.tone_test.ready_warn.set_value("testing denied")
+                                ps.publish("alarm_ready_warn", "testing denied")
                                 log.debug("supervisor SCADA diag tone set failed")
                             elseif packet.length == 2 and type(packet.data[2]) == "table" then
                                 local ready = packet.data[1]
                                 local states = packet.data[2]
 
-                                diag.tone_test.ready_warn.set_value(util.trinary(ready, "", "system not idle"))
+                                ps.publish("alarm_ready_warn", util.trinary(ready, "", "system not idle"))
 
                                 for i = 1, #states do
                                     if diag.tone_test.tone_buttons[i] ~= nil then
                                         diag.tone_test.tone_buttons[i].set_value(states[i] == true)
-                                        diag.tone_test.tone_indicators[i].update(states[i] == true)
+                                        ps.publish("alarm_tone_" .. i, states[i] == true)
                                     end
                                 end
                             else
@@ -952,13 +952,13 @@ function pocket.comms(version, nic, sv_watchdog, api_watchdog, nav)
                             end
                         elseif packet.type == MGMT_TYPE.DIAG_ALARM_SET then
                             if packet.length == 1 and packet.data[1] == false then
-                                diag.tone_test.ready_warn.set_value("testing denied")
+                                ps.publish("alarm_ready_warn", "testing denied")
                                 log.debug("supervisor SCADA diag alarm set failed")
                             elseif packet.length == 2 and type(packet.data[2]) == "table" then
                                 local ready = packet.data[1]
                                 local states = packet.data[2]
 
-                                diag.tone_test.ready_warn.set_value(util.trinary(ready, "", "system not idle"))
+                                ps.publish("alarm_ready_warn", util.trinary(ready, "", "system not idle"))
 
                                 for i = 1, #states do
                                     if diag.tone_test.alarm_buttons[i] ~= nil then
diff --git a/pocket/ui/apps/sys_apps.lua b/pocket/ui/apps/about.lua
similarity index 85%
rename from pocket/ui/apps/sys_apps.lua
rename to pocket/ui/apps/about.lua
index d797caf..08facc5 100644
--- a/pocket/ui/apps/sys_apps.lua
+++ b/pocket/ui/apps/about.lua
@@ -1,5 +1,5 @@
 --
--- System Apps
+-- About Page
 --
 
 local comms      = require("scada-common.comms")
@@ -24,25 +24,21 @@ local cpair = core.cpair
 
 local APP_ID = pocket.APP_ID
 
--- create system app pages
+-- create about page view
 ---@param root Container parent
 local function create_pages(root)
     local db = iocontrol.get_db()
 
-    ----------------
-    -- About Page --
-    ----------------
+    local frame = Div{parent=root,x=1,y=1}
 
-    local about_root = Div{parent=root,x=1,y=1}
+    local app = db.nav.register_app(APP_ID.ABOUT, frame)
 
-    local about_app = db.nav.register_app(APP_ID.ABOUT, about_root)
+    local about_page = app.new_page(nil, 1)
+    local nt_page = app.new_page(about_page, 2)
+    local fw_page = app.new_page(about_page, 3)
+    local hw_page = app.new_page(about_page, 4)
 
-    local about_page = about_app.new_page(nil, 1)
-    local nt_page = about_app.new_page(about_page, 2)
-    local fw_page = about_app.new_page(about_page, 3)
-    local hw_page = about_app.new_page(about_page, 4)
-
-    local about = Div{parent=about_root,x=1,y=2}
+    local about = Div{parent=frame,x=1,y=2}
 
     TextBox{parent=about,y=1,text="System Information",alignment=ALIGN.CENTER}
 
@@ -58,7 +54,7 @@ local function create_pages(root)
 
     local config = pocket.config
 
-    local nt_div = Div{parent=about_root,x=1,y=2}
+    local nt_div = Div{parent=frame,x=1,y=2}
     TextBox{parent=nt_div,y=1,text="Network Details",alignment=ALIGN.CENTER}
 
     PushButton{parent=nt_div,x=2,y=1,text="<",fg_bg=btn_fg_bg,active_fg_bg=btn_active,callback=about_page.nav_to}
@@ -87,7 +83,7 @@ local function create_pages(root)
 
     --#region Firmware Versions
 
-    local fw_div = Div{parent=about_root,x=1,y=2}
+    local fw_div = Div{parent=frame,x=1,y=2}
     TextBox{parent=fw_div,y=1,text="Firmware Versions",alignment=ALIGN.CENTER}
 
     PushButton{parent=fw_div,x=2,y=1,text="<",fg_bg=btn_fg_bg,active_fg_bg=btn_active,callback=about_page.nav_to}
@@ -123,7 +119,7 @@ local function create_pages(root)
 
     --#region Host Versions
 
-    local hw_div = Div{parent=about_root,x=1,y=2}
+    local hw_div = Div{parent=frame,x=1,y=2}
     TextBox{parent=hw_div,y=1,text="Host Versions",alignment=ALIGN.CENTER}
 
     PushButton{parent=hw_div,x=2,y=1,text="<",fg_bg=btn_fg_bg,active_fg_bg=btn_active,callback=about_page.nav_to}
@@ -138,9 +134,9 @@ local function create_pages(root)
 
     --#endregion
 
-    local root_pane = MultiPane{parent=about_root,x=1,y=1,panes={about,nt_div,fw_div,hw_div}}
+    local root_pane = MultiPane{parent=frame,x=1,y=1,panes={about,nt_div,fw_div,hw_div}}
 
-    about_app.set_root_pane(root_pane)
+    app.set_root_pane(root_pane)
 end
 
 return create_pages
diff --git a/pocket/ui/apps/alarm.lua b/pocket/ui/apps/alarm.lua
new file mode 100644
index 0000000..68c69a5
--- /dev/null
+++ b/pocket/ui/apps/alarm.lua
@@ -0,0 +1,171 @@
+--
+-- Alarm Test App
+--
+
+local iocontrol      = require("pocket.iocontrol")
+local pocket         = require("pocket.pocket")
+
+local core           = require("graphics.core")
+
+local Div            = require("graphics.elements.Div")
+local MultiPane      = require("graphics.elements.MultiPane")
+local TextBox        = require("graphics.elements.TextBox")
+
+local IndicatorLight = require("graphics.elements.indicators.IndicatorLight")
+
+local Checkbox       = require("graphics.elements.controls.Checkbox")
+local PushButton     = require("graphics.elements.controls.PushButton")
+local SwitchButton   = require("graphics.elements.controls.SwitchButton")
+
+local ALIGN = core.ALIGN
+local cpair = core.cpair
+
+local APP_ID = pocket.APP_ID
+
+local c_wht_gray  = cpair(colors.white, colors.gray)
+local c_red_gray  = cpair(colors.red, colors.gray)
+local c_yel_gray  = cpair(colors.yellow, colors.gray)
+local c_blue_gray = cpair(colors.blue, colors.gray)
+
+-- create alarm test page view
+---@param root Container parent
+local function new_view(root)
+    local db    = iocontrol.get_db()
+    local ps    = db.ps
+    local ttest = db.diag.tone_test
+
+    local frame = Div{parent=root,x=1,y=1}
+
+    local app = db.nav.register_app(APP_ID.ALARMS, frame, nil, true)
+
+    local main     = Div{parent=frame,x=1,y=1}
+    local page_div = Div{parent=main,y=2,width=main.get_width()}
+
+    --#region alarm testing
+
+    local alarm_page = app.new_page(nil, 1)
+    alarm_page.tasks = { db.diag.tone_test.get_tone_states }
+
+    local alarms_div = Div{parent=page_div}
+
+    TextBox{parent=alarms_div,text="Alarm Sounder Tests",alignment=ALIGN.CENTER}
+
+    local alarm_ready_warn = TextBox{parent=alarms_div,y=2,text="",alignment=ALIGN.CENTER,fg_bg=cpair(colors.yellow,colors.black)}
+    alarm_ready_warn.register(ps, "alarm_ready_warn", alarm_ready_warn.set_value)
+
+    local alarm_page_states = Div{parent=alarms_div,x=2,y=3,height=5,width=8}
+
+    TextBox{parent=alarm_page_states,text="States",alignment=ALIGN.CENTER}
+    local ta_1 = IndicatorLight{parent=alarm_page_states,label="1",colors=c_blue_gray}
+    local ta_2 = IndicatorLight{parent=alarm_page_states,label="2",colors=c_blue_gray}
+    local ta_3 = IndicatorLight{parent=alarm_page_states,label="3",colors=c_blue_gray}
+    local ta_4 = IndicatorLight{parent=alarm_page_states,label="4",colors=c_blue_gray}
+    local ta_5 = IndicatorLight{parent=alarm_page_states,x=6,y=2,label="5",colors=c_blue_gray}
+    local ta_6 = IndicatorLight{parent=alarm_page_states,x=6,label="6",colors=c_blue_gray}
+    local ta_7 = IndicatorLight{parent=alarm_page_states,x=6,label="7",colors=c_blue_gray}
+    local ta_8 = IndicatorLight{parent=alarm_page_states,x=6,label="8",colors=c_blue_gray}
+
+    local ta = { ta_1, ta_2, ta_3, ta_4, ta_5, ta_6, ta_7, ta_8 }
+
+    for i = 1, #ta do
+        ta[i].register(ps, "alarm_tone_" .. i, ta[i].update)
+    end
+
+    local alarms = Div{parent=alarms_div,x=11,y=3,height=15,fg_bg=cpair(colors.lightGray,colors.black)}
+
+    TextBox{parent=alarms,text="Alarms (\x13)",alignment=ALIGN.CENTER,fg_bg=alarms_div.get_fg_bg()}
+
+    local alarm_btns = {}
+    alarm_btns[1]  = Checkbox{parent=alarms,label="BREACH",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_breach}
+    alarm_btns[2]  = Checkbox{parent=alarms,label="RADIATION",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_rad}
+    alarm_btns[3]  = Checkbox{parent=alarms,label="RCT LOST",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_lost}
+    alarm_btns[4]  = Checkbox{parent=alarms,label="CRIT DAMAGE",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_crit}
+    alarm_btns[5]  = Checkbox{parent=alarms,label="DAMAGE",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_dmg}
+    alarm_btns[6]  = Checkbox{parent=alarms,label="OVER TEMP",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_overtemp}
+    alarm_btns[7]  = Checkbox{parent=alarms,label="HIGH TEMP",min_width=15,box_fg_bg=c_yel_gray,callback=ttest.test_hightemp}
+    alarm_btns[8]  = Checkbox{parent=alarms,label="WASTE LEAK",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_wasteleak}
+    alarm_btns[9]  = Checkbox{parent=alarms,label="WASTE HIGH",min_width=15,box_fg_bg=c_yel_gray,callback=ttest.test_highwaste}
+    alarm_btns[10] = Checkbox{parent=alarms,label="RPS TRANS",min_width=15,box_fg_bg=c_yel_gray,callback=ttest.test_rps}
+    alarm_btns[11] = Checkbox{parent=alarms,label="RCS TRANS",min_width=15,box_fg_bg=c_yel_gray,callback=ttest.test_rcs}
+    alarm_btns[12] = Checkbox{parent=alarms,label="TURBINE TRP",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_turbinet}
+
+    ttest.alarm_buttons = alarm_btns
+
+    local function stop_all_alarms()
+        for i = 1, #alarm_btns do alarm_btns[i].set_value(false) end
+        ttest.stop_alarms()
+    end
+
+    PushButton{parent=alarms,x=3,y=15,text="STOP \x13",min_width=8,fg_bg=cpair(colors.black,colors.red),active_fg_bg=c_wht_gray,callback=stop_all_alarms}
+
+    --#endregion
+
+    --#region direct tone testing
+
+    local tones_page = app.new_page(nil, 2)
+    tones_page.tasks = { db.diag.tone_test.get_tone_states }
+
+    local tones_div = Div{parent=page_div}
+
+    TextBox{parent=tones_div,text="Alarm Sounder Tests",alignment=ALIGN.CENTER}
+
+    local tone_ready_warn = TextBox{parent=tones_div,y=2,text="",alignment=ALIGN.CENTER,fg_bg=cpair(colors.yellow,colors.black)}
+    tone_ready_warn.register(ps, "alarm_ready_warn", tone_ready_warn.set_value)
+
+    local tone_page_states = Div{parent=tones_div,x=3,y=3,height=5,width=8}
+
+    TextBox{parent=tone_page_states,text="States",alignment=ALIGN.CENTER}
+    local tt_1 = IndicatorLight{parent=tone_page_states,label="1",colors=c_blue_gray}
+    local tt_2 = IndicatorLight{parent=tone_page_states,label="2",colors=c_blue_gray}
+    local tt_3 = IndicatorLight{parent=tone_page_states,label="3",colors=c_blue_gray}
+    local tt_4 = IndicatorLight{parent=tone_page_states,label="4",colors=c_blue_gray}
+    local tt_5 = IndicatorLight{parent=tone_page_states,x=6,y=2,label="5",colors=c_blue_gray}
+    local tt_6 = IndicatorLight{parent=tone_page_states,x=6,label="6",colors=c_blue_gray}
+    local tt_7 = IndicatorLight{parent=tone_page_states,x=6,label="7",colors=c_blue_gray}
+    local tt_8 = IndicatorLight{parent=tone_page_states,x=6,label="8",colors=c_blue_gray}
+
+    local tt = { tt_1, tt_2, tt_3, tt_4, tt_5, tt_6, tt_7, tt_8 }
+
+    for i = 1, #tt do
+        tt[i].register(ps, "alarm_tone_" .. i, tt[i].update)
+    end
+
+    local tones = Div{parent=tones_div,x=14,y=3,height=10,width=8,fg_bg=cpair(colors.black,colors.yellow)}
+
+    TextBox{parent=tones,text="Tones",alignment=ALIGN.CENTER,fg_bg=tones_div.get_fg_bg()}
+
+    local test_btns = {}
+    test_btns[1] = SwitchButton{parent=tones,text="TEST 1",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_1}
+    test_btns[2] = SwitchButton{parent=tones,text="TEST 2",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_2}
+    test_btns[3] = SwitchButton{parent=tones,text="TEST 3",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_3}
+    test_btns[4] = SwitchButton{parent=tones,text="TEST 4",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_4}
+    test_btns[5] = SwitchButton{parent=tones,text="TEST 5",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_5}
+    test_btns[6] = SwitchButton{parent=tones,text="TEST 6",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_6}
+    test_btns[7] = SwitchButton{parent=tones,text="TEST 7",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_7}
+    test_btns[8] = SwitchButton{parent=tones,text="TEST 8",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_8}
+
+    ttest.tone_buttons = test_btns
+
+    local function stop_all_tones()
+        for i = 1, #test_btns do test_btns[i].set_value(false) end
+        ttest.stop_tones()
+    end
+
+    PushButton{parent=tones,text="STOP",min_width=8,active_fg_bg=c_wht_gray,fg_bg=cpair(colors.black,colors.red),callback=stop_all_tones}
+
+    --#endregion
+
+    -- setup multipane
+    local u_pane = MultiPane{parent=page_div,x=1,y=1,panes={alarms_div,tones_div}}
+    app.set_root_pane(u_pane)
+
+    local list = {
+        { label = " # ", tall = true, color = core.cpair(colors.black, colors.green), callback = db.nav.go_home },
+        { label = " \x13 ", color = core.cpair(colors.black, colors.red), callback = function () app.switcher(1) end },
+        { label = " \x0f ", color = core.cpair(colors.black, colors.yellow), callback = function () app.switcher(2) end }
+    }
+
+    app.set_sidebar(list)
+end
+
+return new_view
diff --git a/pocket/ui/apps/comps.lua b/pocket/ui/apps/comps.lua
index 5450118..91a9558 100644
--- a/pocket/ui/apps/comps.lua
+++ b/pocket/ui/apps/comps.lua
@@ -32,7 +32,6 @@ local border = core.border
 local APP_ID = pocket.APP_ID
 
 local lu_col    = style.label_unit_pair
-
 local box_label = cpair(colors.lightGray, colors.gray)
 
 -- new computer list page view
diff --git a/pocket/ui/apps/diag_apps.lua b/pocket/ui/apps/diag_apps.lua
deleted file mode 100644
index ba2bed3..0000000
--- a/pocket/ui/apps/diag_apps.lua
+++ /dev/null
@@ -1,118 +0,0 @@
---
--- Diagnostic Apps
---
-
-local iocontrol      = require("pocket.iocontrol")
-local pocket         = require("pocket.pocket")
-
-local core           = require("graphics.core")
-
-local Div            = require("graphics.elements.Div")
-local TextBox        = require("graphics.elements.TextBox")
-
-local IndicatorLight = require("graphics.elements.indicators.IndicatorLight")
-
-local Checkbox       = require("graphics.elements.controls.Checkbox")
-local PushButton     = require("graphics.elements.controls.PushButton")
-local SwitchButton   = require("graphics.elements.controls.SwitchButton")
-
-local ALIGN = core.ALIGN
-local cpair = core.cpair
-
-local APP_ID = pocket.APP_ID
-
--- create diagnostic app pages
----@param root Container parent
-local function create_pages(root)
-    local db = iocontrol.get_db()
-
-    ------------------------
-    -- Alarm Testing Page --
-    ------------------------
-
-    local alarm_test = Div{parent=root,x=1,y=1}
-
-    local alarm_app = db.nav.register_app(APP_ID.ALARMS, alarm_test, nil, true)
-
-    local page = alarm_app.new_page(nil, function () end)
-    page.tasks = { db.diag.tone_test.get_tone_states }
-
-    local ttest = db.diag.tone_test
-
-    local c_wht_gray = cpair(colors.white, colors.gray)
-    local c_red_gray = cpair(colors.red, colors.gray)
-    local c_yel_gray = cpair(colors.yellow, colors.gray)
-    local c_blue_gray = cpair(colors.blue, colors.gray)
-
-    local audio = Div{parent=alarm_test,x=1,y=1}
-
-    TextBox{parent=audio,y=1,text="Alarm Sounder Tests",alignment=ALIGN.CENTER}
-
-    ttest.ready_warn = TextBox{parent=audio,y=2,text="",alignment=ALIGN.CENTER,fg_bg=cpair(colors.yellow,colors.black)}
-
-    local tones = Div{parent=audio,x=2,y=3,height=10,width=8,fg_bg=cpair(colors.black,colors.yellow)}
-
-    TextBox{parent=tones,text="Tones",alignment=ALIGN.CENTER,fg_bg=audio.get_fg_bg()}
-
-    local test_btns = {}
-    test_btns[1] = SwitchButton{parent=tones,text="TEST 1",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_1}
-    test_btns[2] = SwitchButton{parent=tones,text="TEST 2",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_2}
-    test_btns[3] = SwitchButton{parent=tones,text="TEST 3",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_3}
-    test_btns[4] = SwitchButton{parent=tones,text="TEST 4",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_4}
-    test_btns[5] = SwitchButton{parent=tones,text="TEST 5",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_5}
-    test_btns[6] = SwitchButton{parent=tones,text="TEST 6",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_6}
-    test_btns[7] = SwitchButton{parent=tones,text="TEST 7",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_7}
-    test_btns[8] = SwitchButton{parent=tones,text="TEST 8",min_width=8,active_fg_bg=c_wht_gray,callback=ttest.test_8}
-
-    ttest.tone_buttons = test_btns
-
-    local function stop_all_tones()
-        for i = 1, #test_btns do test_btns[i].set_value(false) end
-        ttest.stop_tones()
-    end
-
-    PushButton{parent=tones,text="STOP",min_width=8,active_fg_bg=c_wht_gray,fg_bg=cpair(colors.black,colors.red),callback=stop_all_tones}
-
-    local alarms = Div{parent=audio,x=11,y=3,height=15,fg_bg=cpair(colors.lightGray,colors.black)}
-
-    TextBox{parent=alarms,text="Alarms (\x13)",alignment=ALIGN.CENTER,fg_bg=audio.get_fg_bg()}
-
-    local alarm_btns = {}
-    alarm_btns[1] = Checkbox{parent=alarms,label="BREACH",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_breach}
-    alarm_btns[2] = Checkbox{parent=alarms,label="RADIATION",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_rad}
-    alarm_btns[3] = Checkbox{parent=alarms,label="RCT LOST",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_lost}
-    alarm_btns[4] = Checkbox{parent=alarms,label="CRIT DAMAGE",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_crit}
-    alarm_btns[5] = Checkbox{parent=alarms,label="DAMAGE",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_dmg}
-    alarm_btns[6] = Checkbox{parent=alarms,label="OVER TEMP",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_overtemp}
-    alarm_btns[7] = Checkbox{parent=alarms,label="HIGH TEMP",min_width=15,box_fg_bg=c_yel_gray,callback=ttest.test_hightemp}
-    alarm_btns[8] = Checkbox{parent=alarms,label="WASTE LEAK",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_wasteleak}
-    alarm_btns[9] = Checkbox{parent=alarms,label="WASTE HIGH",min_width=15,box_fg_bg=c_yel_gray,callback=ttest.test_highwaste}
-    alarm_btns[10] = Checkbox{parent=alarms,label="RPS TRANS",min_width=15,box_fg_bg=c_yel_gray,callback=ttest.test_rps}
-    alarm_btns[11] = Checkbox{parent=alarms,label="RCS TRANS",min_width=15,box_fg_bg=c_yel_gray,callback=ttest.test_rcs}
-    alarm_btns[12] = Checkbox{parent=alarms,label="TURBINE TRP",min_width=15,box_fg_bg=c_red_gray,callback=ttest.test_turbinet}
-
-    ttest.alarm_buttons = alarm_btns
-
-    local function stop_all_alarms()
-        for i = 1, #alarm_btns do alarm_btns[i].set_value(false) end
-        ttest.stop_alarms()
-    end
-
-    PushButton{parent=alarms,x=3,y=15,text="STOP \x13",min_width=8,fg_bg=cpair(colors.black,colors.red),active_fg_bg=c_wht_gray,callback=stop_all_alarms}
-
-    local states = Div{parent=audio,x=2,y=14,height=5,width=8}
-
-    TextBox{parent=states,text="States",alignment=ALIGN.CENTER}
-    local t_1 = IndicatorLight{parent=states,label="1",colors=c_blue_gray}
-    local t_2 = IndicatorLight{parent=states,label="2",colors=c_blue_gray}
-    local t_3 = IndicatorLight{parent=states,label="3",colors=c_blue_gray}
-    local t_4 = IndicatorLight{parent=states,label="4",colors=c_blue_gray}
-    local t_5 = IndicatorLight{parent=states,x=6,y=2,label="5",colors=c_blue_gray}
-    local t_6 = IndicatorLight{parent=states,x=6,label="6",colors=c_blue_gray}
-    local t_7 = IndicatorLight{parent=states,x=6,label="7",colors=c_blue_gray}
-    local t_8 = IndicatorLight{parent=states,x=6,label="8",colors=c_blue_gray}
-
-    ttest.tone_indicators = { t_1, t_2, t_3, t_4, t_5, t_6, t_7, t_8 }
-end
-
-return create_pages
diff --git a/pocket/ui/apps/dummy_app.lua b/pocket/ui/apps/dummy_app.lua
deleted file mode 100644
index a564761..0000000
--- a/pocket/ui/apps/dummy_app.lua
+++ /dev/null
@@ -1,29 +0,0 @@
---
--- Placeholder App
---
-
-local iocontrol = require("pocket.iocontrol")
-local pocket    = require("pocket.pocket")
-
-local core      = require("graphics.core")
-
-local Div       = require("graphics.elements.Div")
-local TextBox   = require("graphics.elements.TextBox")
-
-local APP_ID = pocket.APP_ID
-
--- create placeholder app page
----@param root Container parent
-local function create_pages(root)
-    local db = iocontrol.get_db()
-
-    local main = Div{parent=root,x=1,y=1}
-
-    db.nav.register_app(APP_ID.DUMMY, main).new_page(nil, function () end)
-
-    TextBox{parent=main,text="This app is not implemented yet.",x=1,y=2,alignment=core.ALIGN.CENTER}
-
-    TextBox{parent=main,text=" pretend something  cool is here \x03",x=1,y=10,alignment=core.ALIGN.CENTER,fg_bg=core.cpair(colors.gray,colors.black)}
-end
-
-return create_pages
diff --git a/pocket/ui/apps/facility.lua b/pocket/ui/apps/facility.lua
index 65b25e3..9763982 100644
--- a/pocket/ui/apps/facility.lua
+++ b/pocket/ui/apps/facility.lua
@@ -41,7 +41,7 @@ local grn_ind_s    = style.icon_states.grn_ind_s
 -- new unit page view
 ---@param root Container parent
 local function new_view(root)
-    local db  = iocontrol.get_db()
+    local db = iocontrol.get_db()
 
     local frame = Div{parent=root,x=1,y=1}
 
diff --git a/pocket/ui/apps/guide.lua b/pocket/ui/apps/guide.lua
index 88bf082..5e627f3 100644
--- a/pocket/ui/apps/guide.lua
+++ b/pocket/ui/apps/guide.lua
@@ -9,7 +9,6 @@ local iocontrol     = require("pocket.iocontrol")
 local pocket        = require("pocket.pocket")
 
 local docs          = require("pocket.ui.docs")
--- local style         = require("pocket.ui.style")
 
 local guide_section = require("pocket.ui.pages.guide_section")
 
@@ -31,10 +30,6 @@ local cpair = core.cpair
 
 local APP_ID = pocket.APP_ID
 
--- local label   = style.label
--- local lu_col  = style.label_unit_pair
--- local text_fg = style.text_fg
-
 -- new system guide view
 ---@param root Container parent
 local function new_view(root)
diff --git a/pocket/ui/apps/process.lua b/pocket/ui/apps/process.lua
index 6f04d60..ed03d71 100644
--- a/pocket/ui/apps/process.lua
+++ b/pocket/ui/apps/process.lua
@@ -194,7 +194,7 @@ local function new_view(root)
 
         TextBox{parent=c_div,y=1,text="Process Control",alignment=ALIGN.CENTER}
 
-        local u_stat = Rectangle{parent=c_div,border=border(1,colors.gray,true),thin=true,width=21,height=5,x=1,y=3,fg_bg=cpair(colors.black,colors.lightGray)}
+        local u_stat      = Rectangle{parent=c_div,border=border(1,colors.gray,true),thin=true,width=21,height=5,x=1,y=3,fg_bg=cpair(colors.black,colors.lightGray)}
         local stat_line_1 = TextBox{parent=u_stat,x=1,y=1,text="UNKNOWN",alignment=ALIGN.CENTER}
         local stat_line_2 = TextBox{parent=u_stat,x=1,y=2,text="awaiting data...",height=2,alignment=ALIGN.CENTER,trim_whitespace=true,fg_bg=cpair(colors.gray,colors.lightGray)}
 
@@ -210,7 +210,7 @@ local function new_view(root)
         end
 
         local start = HazardButton{parent=c_div,x=2,y=9,text="START",accent=colors.lightBlue,callback=_start_auto,timeout=3,fg_bg=hzd_fg_bg,dis_colors=dis_colors}
-        local stop = HazardButton{parent=c_div,x=13,y=9,text="STOP",accent=colors.red,callback=process.process_stop,timeout=3,fg_bg=hzd_fg_bg,dis_colors=dis_colors}
+        local stop  = HazardButton{parent=c_div,x=13,y=9,text="STOP",accent=colors.red,callback=process.process_stop,timeout=3,fg_bg=hzd_fg_bg,dis_colors=dis_colors}
 
         db.facility.start_ack = start.on_response
         db.facility.stop_ack = stop.on_response
diff --git a/pocket/ui/apps/unit.lua b/pocket/ui/apps/unit.lua
index 304608e..6213f6b 100644
--- a/pocket/ui/apps/unit.lua
+++ b/pocket/ui/apps/unit.lua
@@ -312,8 +312,6 @@ local function new_view(root)
             c_emg.register(u_ps, "EmergencyCoolant", c_emg.update)
             c_mwrf.register(u_ps, "MaxWaterReturnFeed", c_mwrf.update)
 
-            -- rcs_div.line_break()
-            -- TextBox{parent=rcs_div,text="Mismatches",alignment=ALIGN.CENTER,fg_bg=label}
             local c_cfm = IconIndicator{parent=rcs_div,label="Coolant Feed",states=yel_ind_s}
             local c_brm = IconIndicator{parent=rcs_div,label="Boil Rate",states=yel_ind_s}
             local c_sfm = IconIndicator{parent=rcs_div,label="Steam Feed",states=yel_ind_s}
@@ -323,7 +321,6 @@ local function new_view(root)
             c_sfm.register(u_ps, "SteamFeedMismatch", c_sfm.update)
 
             rcs_div.line_break()
-            -- TextBox{parent=rcs_div,text="Aggregate Checks",alignment=ALIGN.CENTER,fg_bg=label}
 
             if unit.num_boilers > 0 then
                 local wll = IconIndicator{parent=rcs_div,label="Boiler Water Lo",states=red_ind_s}
diff --git a/pocket/ui/docs.lua b/pocket/ui/docs.lua
index 44219ea..ec395a7 100644
--- a/pocket/ui/docs.lua
+++ b/pocket/ui/docs.lua
@@ -1,3 +1,7 @@
+--
+-- All the text documentation used in the Guide app is defined in this file.
+--
+
 local const = require("scada-common.constants")
 
 local docs = {}
diff --git a/pocket/ui/main.lua b/pocket/ui/main.lua
index 4ea44e1..001b314 100644
--- a/pocket/ui/main.lua
+++ b/pocket/ui/main.lua
@@ -7,16 +7,15 @@ local util        = require("scada-common.util")
 local iocontrol   = require("pocket.iocontrol")
 local pocket      = require("pocket.pocket")
 
+local about_app   = require("pocket.ui.apps.about")
+local alarm_app   = require("pocket.ui.apps.alarm")
 local comps_app   = require("pocket.ui.apps.comps")
 local control_app = require("pocket.ui.apps.control")
-local diag_apps   = require("pocket.ui.apps.diag_apps")
-local dummy_app   = require("pocket.ui.apps.dummy_app")
 local facil_app   = require("pocket.ui.apps.facility")
 local guide_app   = require("pocket.ui.apps.guide")
 local loader_app  = require("pocket.ui.apps.loader")
 local process_app = require("pocket.ui.apps.process")
 local rad_app     = require("pocket.ui.apps.radiation")
-local sys_apps    = require("pocket.ui.apps.sys_apps")
 local unit_app    = require("pocket.ui.apps.unit")
 local waste_app   = require("pocket.ui.apps.waste")
 
@@ -75,10 +74,9 @@ local function init(main)
     guide_app(page_div)
     rad_app(page_div)
     loader_app(page_div)
-    sys_apps(page_div)
-    diag_apps(page_div)
+    about_app(page_div)
+    alarm_app(page_div)
     comps_app(page_div)
-    dummy_app(page_div)
 
     -- verify all apps were created
     assert(util.table_len(db.nav.get_containers()) == APP_ID.NUM_APPS, "app IDs were not sequential or some apps weren't registered")
diff --git a/pocket/ui/pages/dynamic_tank.lua b/pocket/ui/pages/dynamic_tank.lua
index 17221a6..6604dfd 100644
--- a/pocket/ui/pages/dynamic_tank.lua
+++ b/pocket/ui/pages/dynamic_tank.lua
@@ -1,3 +1,7 @@
+--
+-- Dynamic Tank View
+--
+
 local types          = require("scada-common.types")
 local util           = require("scada-common.util")
 
@@ -16,7 +20,7 @@ local IconIndicator  = require("graphics.elements.indicators.IconIndicator")
 local StateIndicator = require("graphics.elements.indicators.StateIndicator")
 
 local CONTAINER_MODE = types.CONTAINER_MODE
-local COOLANT_TYPE = types.COOLANT_TYPE
+local COOLANT_TYPE   = types.COOLANT_TYPE
 
 local ALIGN = core.ALIGN
 local cpair = core.cpair
diff --git a/pocket/ui/pages/facility_matrix.lua b/pocket/ui/pages/facility_matrix.lua
index 77640b1..1d3c362 100644
--- a/pocket/ui/pages/facility_matrix.lua
+++ b/pocket/ui/pages/facility_matrix.lua
@@ -1,3 +1,7 @@
+--
+-- Induction Matrix View
+--
+
 local iocontrol      = require("pocket.iocontrol")
 
 local style          = require("pocket.ui.style")
diff --git a/pocket/ui/pages/facility_sps.lua b/pocket/ui/pages/facility_sps.lua
index 1de23ca..2de3863 100644
--- a/pocket/ui/pages/facility_sps.lua
+++ b/pocket/ui/pages/facility_sps.lua
@@ -1,3 +1,7 @@
+--
+-- SPS View
+--
+
 local iocontrol      = require("pocket.iocontrol")
 
 local style          = require("pocket.ui.style")
diff --git a/pocket/ui/pages/guide_section.lua b/pocket/ui/pages/guide_section.lua
index a3ea333..9bb1df2 100644
--- a/pocket/ui/pages/guide_section.lua
+++ b/pocket/ui/pages/guide_section.lua
@@ -1,3 +1,7 @@
+--
+-- A Guide App Subsection
+--
+
 local log            = require("scada-common.log")
 local util           = require("scada-common.util")
 
@@ -17,7 +21,7 @@ local LED            = require("graphics.elements.indicators.LED")
 local ALIGN = core.ALIGN
 local cpair = core.cpair
 
-local DOC_TYPE = docs.DOC_ITEM_TYPE
+local DOC_TYPE  = docs.DOC_ITEM_TYPE
 local LIST_TYPE = docs.DOC_LIST_TYPE
 
 -- new guide documentation section
diff --git a/pocket/ui/pages/home_page.lua b/pocket/ui/pages/home_page.lua
index 2af6f8a..bb962d5 100644
--- a/pocket/ui/pages/home_page.lua
+++ b/pocket/ui/pages/home_page.lua
@@ -9,11 +9,9 @@ local core         = require("graphics.core")
 
 local AppMultiPane = require("graphics.elements.AppMultiPane")
 local Div          = require("graphics.elements.Div")
-local TextBox      = require("graphics.elements.TextBox")
 
 local App          = require("graphics.elements.controls.App")
 
-local ALIGN = core.ALIGN
 local cpair = core.cpair
 
 local APP_ID = pocket.APP_ID
diff --git a/pocket/ui/pages/unit_boiler.lua b/pocket/ui/pages/unit_boiler.lua
index 1790268..344451c 100644
--- a/pocket/ui/pages/unit_boiler.lua
+++ b/pocket/ui/pages/unit_boiler.lua
@@ -1,3 +1,7 @@
+--
+-- Unit Boiler View
+--
+
 local types          = require("scada-common.types")
 local util           = require("scada-common.util")
 
@@ -13,8 +17,8 @@ local TextBox        = require("graphics.elements.TextBox")
 local PushButton     = require("graphics.elements.controls.PushButton")
 
 local DataIndicator  = require("graphics.elements.indicators.DataIndicator")
-local StateIndicator = require("graphics.elements.indicators.StateIndicator")
 local IconIndicator  = require("graphics.elements.indicators.IconIndicator")
+local StateIndicator = require("graphics.elements.indicators.StateIndicator")
 local VerticalBar    = require("graphics.elements.indicators.VerticalBar")
 
 local ALIGN = core.ALIGN
diff --git a/pocket/ui/pages/unit_reactor.lua b/pocket/ui/pages/unit_reactor.lua
index a3333f5..30a8e36 100644
--- a/pocket/ui/pages/unit_reactor.lua
+++ b/pocket/ui/pages/unit_reactor.lua
@@ -1,3 +1,7 @@
+--
+-- Unit Reactor View
+--
+
 local types          = require("scada-common.types")
 local util           = require("scada-common.util")
 
@@ -13,8 +17,8 @@ local TextBox        = require("graphics.elements.TextBox")
 local PushButton     = require("graphics.elements.controls.PushButton")
 
 local DataIndicator  = require("graphics.elements.indicators.DataIndicator")
-local StateIndicator = require("graphics.elements.indicators.StateIndicator")
 local IconIndicator  = require("graphics.elements.indicators.IconIndicator")
+local StateIndicator = require("graphics.elements.indicators.StateIndicator")
 local VerticalBar    = require("graphics.elements.indicators.VerticalBar")
 
 local ALIGN = core.ALIGN
diff --git a/pocket/ui/pages/unit_turbine.lua b/pocket/ui/pages/unit_turbine.lua
index 94541ad..9e9a79e 100644
--- a/pocket/ui/pages/unit_turbine.lua
+++ b/pocket/ui/pages/unit_turbine.lua
@@ -1,3 +1,7 @@
+--
+-- Unit Turbine View
+--
+
 local util           = require("scada-common.util")
 
 local iocontrol      = require("pocket.iocontrol")