diff --git a/src/dux/calc_ship_cost_mass.test.js b/src/dux/calc_ship_cost_mass.test.js
deleted file mode 100644
index 02087c5..0000000
--- a/src/dux/calc_ship_cost_mass.test.js
+++ /dev/null
@@ -1,30 +0,0 @@
-import tap from "tap";
-
-import { calc_ship_req } from "./utils";
-
-const sample = {
-  general: {
-    mass: 10,
-    used_mass: 0,
-    cost: 10,
-  },
-  ftl: {
-    cost: 4,
-    mass: 2,
-  },
-  structure: {
-    hull: {
-      cost: 2,
-      mass: 1,
-    },
-  },
-};
-
-tap.same(
-  calc_ship_req(sample),
-  {
-    cost: 16,
-    mass: 3,
-  },
-  "sample ship"
-);
diff --git a/src/dux/cargo/index.js b/src/dux/cargo/index.js
deleted file mode 100644
index 4c0be27..0000000
--- a/src/dux/cargo/index.js
+++ /dev/null
@@ -1,22 +0,0 @@
-import Updux from "updux";
-import { action, payload } from "ts-action";
-import u from "@yanick/updeep";
-import { createSelector } from "reselect";
-
-const dux = new Updux({
-  initial: {
-    space: 0,
-    cost: 0,
-    mass: 0,
-  },
-});
-
-const set_cargo = action("set_cargo", payload());
-
-dux.addMutation(set_cargo, (space) => () => ({
-  space,
-  cost: 0,
-  mass: space,
-}));
-
-export default dux.asDux;
diff --git a/src/dux/carrier/index.js b/src/dux/carrier/index.js
deleted file mode 100644
index a7453d6..0000000
--- a/src/dux/carrier/index.js
+++ /dev/null
@@ -1,58 +0,0 @@
-import Updux from "updux";
-import { action, payload } from "ts-action";
-import u from "@yanick/updeep";
-import _ from 'lodash';
-import { createSelector } from "reselect";
-
-import squadron_types from './squadron_types';
-
-const uu = transform => state => transform(state)(state);
-
-const dux = new Updux({
-    initial: {
-        bays: 0,
-        cost: 0,
-        mass: 0,
-        squadrons: [],
-    },
-});
-
-const set_squadron = action('set_squadron',payload());
-
-dux.addMutation(set_squadron, ({id,type}) => u.update({ squadrons: u.map(
-    u.if(_.matches({id}), u({type, cost: 6 * _.find(squadron_types,{type}).cost, mass: 6 }))
-)}));
-
-const set_carrier_bays = action('set_carrier_bays', payload() );
-
-dux.addMutation( set_carrier_bays, bays => state => {
-    state = u.update({
-        bays,
-        mass: 1.5*6*bays,
-        cost: 3 * 1.5 * 6 * bays,
-    })(state);
-
-    if( state.squadrons.length > bays ) {
-        state = u.update({
-            squadrons: squadrons => squadrons.slice(0,bays)
-        }, state)
-    }
-
-    if( state.squadrons.length < bays ) {
-        state = u.update({
-            squadrons: squadrons => [ ...squadrons, ..._.times(
-                bays - state.squadrons.length, i => ({
-                    id: 1 + i + state.squadrons.length,
-                    cost: 6 * squadron_types[0].cost,
-                    mass: 6,
-                    type: squadron_types[0].type,
-                })
-            )] }, state)
-    }
-
-    return state;
-
-});
-
-
-export default dux.asDux;
diff --git a/src/dux/carrier/squadron_types.js b/src/dux/carrier/squadron_types.js
deleted file mode 100644
index dc3c4d3..0000000
--- a/src/dux/carrier/squadron_types.js
+++ /dev/null
@@ -1,9 +0,0 @@
-export default [
-  { type: "standard", cost: 3 },
-  { type: "fast", cost: 4 },
-  { type: "heavy", cost: 5 },
-  { type: "interceptor", cost: 3 },
-  { type: "attack", cost: 4 },
-  { type: "long range", cost: 4 },
-  { type: "torpedo", cost: 6 },
-];
diff --git a/src/dux/engine/index.js b/src/dux/engine/index.js
deleted file mode 100644
index a327205..0000000
--- a/src/dux/engine/index.js
+++ /dev/null
@@ -1,27 +0,0 @@
-import Updux from 'updux';
-import  { action, payload } from 'ts-action';
-import u from "@yanick/updeep";
-import { createSelector } from 'reselect';
-
-const set_engine = action('set_engine',payload());
-const set_drive_reqs = action('set_drive_reqs',payload());
-
-const dux = new Updux({
-    initial: {
-                mass: 1,
-                cost: 2,
-                rating: 1,
-    }
-});
-
-dux.addMutation(set_engine, engine => u.update(engine));
-dux.addMutation(set_drive_reqs, rate => u.update(rate));
-
-export function calc_drive_reqs(ship_mass,rating,advanced=false) {
-    const mass = Math.ceil(rating * 0.05 * ship_mass);
-    const cost = mass * ( advanced ? 3 : 2 );
-
-    return { mass, cost };
-}
-
-export default dux.asDux;
diff --git a/src/dux/ftl/index.js b/src/dux/ftl/index.js
deleted file mode 100644
index 34578f4..0000000
--- a/src/dux/ftl/index.js
+++ /dev/null
@@ -1,25 +0,0 @@
-import Updux from "updux";
-import  { action, payload } from 'ts-action';
-import u from "@yanick/updeep";
-import { createSelector } from 'reselect';
-import { calc_ftl_reqs } from './rules';
-
-// 'none' | 'standard' | 'advanced'
-const set_ftl = action('set_ftl',payload());
-
-const set_ftl_reqs = action('set_ftl_reqs', payload() );
-
-console.log(Updux);
-const dux = new Updux({
-    initial: {
-                mass: 0,
-                cost: 0,
-                type: 'none'
-    }
-});
-
-dux.addMutation(set_ftl, type => u.update({type}));
-dux.addMutation(set_ftl_reqs, reqs => u.update(reqs) );
-
-export default dux.asDux;
-
diff --git a/src/dux/ftl/rules.js b/src/dux/ftl/rules.js
deleted file mode 100644
index 46e600a..0000000
--- a/src/dux/ftl/rules.js
+++ /dev/null
@@ -1,10 +0,0 @@
-export function calc_ftl_reqs(type,ship_mass) {
-    if(type==="none") return { cost: 0, mass: 0 };
-
-    const mass = Math.ceil(ship_mass / 10);
-
-    return {
-        mass,
-        cost: mass * ( type === 'advanced' ? 3 : 2 ),
-    }
-}
diff --git a/src/dux/ftl/test.js b/src/dux/ftl/test.js
deleted file mode 100644
index 4361695..0000000
--- a/src/dux/ftl/test.js
+++ /dev/null
@@ -1,7 +0,0 @@
-import tap from 'tap';
-
-import { calc_ftl_rate } from './rules';
-
-tap.same( calc_ftl_rate(111,'standard'), { mass: 12, cost: 24 },
-    'mass rounded up' );
-
diff --git a/src/dux/index.js b/src/dux/index.js
deleted file mode 100644
index 2c234ca..0000000
--- a/src/dux/index.js
+++ /dev/null
@@ -1,135 +0,0 @@
-import Updux from "updux";
-import { action, payload } from "ts-action";
-import u from "@yanick/updeep";
-import { createSelector } from "reselect";
-
-import ftl from "./ftl";
-import engine, { calc_drive_reqs } from "./engine";
-import weaponry from "./weaponry";
-import { calc_ftl_reqs } from "./ftl/rules";
-import { calc_ship_req } from "./utils";
-import { candidate_ship_types } from "./ship_types";
-import structure from "./structure";
-import cargo from "./cargo";
-import streamlining from "./streamlining";
-import carrier from "./carrier";
-import { ceil } from "./utils";
-
-const set_ship_mass = action("set_ship_mass", payload());
-const set_name = action("set_name", payload());
-
-const set_ship_reqs = action("set_ship_reqs", payload());
-const set_hull = action("set_hull", payload());
-
-const set_ship_type = action("set_ship_type", payload());
-
-const reset = action("reset");
-
-const initial = {
-  general: {
-    ship_class: "",
-    name: "",
-    ship_type: "",
-    mass: 10,
-    used_mass: 0,
-    cost: 10,
-  },
-};
-
-const dux = new Updux({
-  subduxes: { ftl, engine, weaponry, structure, cargo, streamlining, carrier },
-  initial,
-});
-
-dux.addMutation(reset, () => () => initial);
-
-dux.addMutation(set_hull, ({ rating }) => (state) => {
-  return u.updateIn("structure.hull", {
-    cost: 2 * rating,
-    rating,
-    mass: rating,
-  })(state);
-});
-dux.addMutation(set_ship_mass, (mass) => u.updateIn("general", { mass }));
-dux.addMutation(set_name, (name) => u.updateIn("general", { name }));
-
-dux.addMutation(action("set_ship_class", payload()), (ship_class) =>
-  u.updateIn("general", { ship_class })
-);
-
-dux.addMutation(set_ship_reqs, ({ cost, mass: used_mass }) =>
-  u.updateIn("general", { cost, used_mass })
-);
-
-// set ship's req
-dux.addSubscription((store) =>
-  createSelector(calc_ship_req, (reqs) => store.dispatch(set_ship_reqs(reqs)))
-);
-
-
-dux.addSubscription((store) =>
-  createSelector(
-    (store) => store.general.mass,
-    (store) => store.general.ship_type,
-    (store) => store.carrier.bays,
-    (mass, type, bays) => {
-      console.log({ bays });
-      const candidates = candidate_ship_types(mass, bays > 0);
-
-      console.log({ candidates });
-      if (candidates.length === 0) return;
-
-      if (candidates.find(({ name }) => name === type)) return;
-
-      store.dispatch(store.actions.set_ship_type(candidates[0].name));
-    }
-  )
-);
-
-dux.addMutation(set_ship_type, (type) => u.updateIn("general.ship_type", type));
-
-dux.addSubscription((store) =>
-  createSelector(
-    [(ship) => ship.general.mass, (ship) => ship.ftl.type],
-    (ship_mass, type) =>
-      store.dispatch(ftl.actions.set_ftl_reqs(calc_ftl_reqs(type, ship_mass)))
-  )
-);
-
-dux.addSubscription((store) =>
-  createSelector(
-    (ship) => ship.general.mass,
-    (ship) => ship.structure.screens.standard,
-    (ship) => ship.structure.screens.advanced,
-    (mass, standard, advanced) => {
-      const standard_mass = standard * Math.max(3, ceil(0.05 * mass));
-      const advanced_mass = advanced * Math.max(4, ceil(0.075 * mass));
-
-      store.dispatch(
-        dux.actions.set_screens_reqs({
-          mass: standard_mass + advanced_mass,
-          cost: 3 * standard_mass + 4 * advanced_mass,
-        })
-      );
-    }
-  )
-);
-
-dux.addSubscription((store) =>
-  createSelector(
-    [
-      (ship) => ship.general.mass,
-      (ship) => ship.engine.rating,
-      (ship) => ship.engine.advanced,
-    ],
-    (ship_mass, rating, advanced) =>
-      store.dispatch(
-        dux.actions.set_drive_reqs(calc_drive_reqs(ship_mass, rating, advanced))
-      )
-  )
-);
-
-
-export default dux.asDux;
-
-export const actions = dux.actions;
diff --git a/src/dux/streamlining/index.js b/src/dux/streamlining/index.js
deleted file mode 100644
index 7356bab..0000000
--- a/src/dux/streamlining/index.js
+++ /dev/null
@@ -1,22 +0,0 @@
-import Updux from "updux";
-import { action, payload } from "ts-action";
-import u from "@yanick/updeep";
-import { createSelector } from "reselect";
-
-const dux = new Updux({
-    initial: {
-        type: 'none',
-        cost: 0,
-        mass: 0,
-    },
-});
-
-const set_streamlining = action('set_streamlining',payload());
-
-dux.addMutation(set_streamlining, type => u.update({type}) );
-
-const set_streamlining_cost_mass = action('set_streamlining_cost_mass',payload());
-
-dux.addMutation( set_streamlining_cost_mass, reqs => u.update(reqs) );
-
-export default dux.asDux;
diff --git a/src/dux/structure/armour/index.js b/src/dux/structure/armour/index.js
deleted file mode 100644
index 11cbbb3..0000000
--- a/src/dux/structure/armour/index.js
+++ /dev/null
@@ -1,36 +0,0 @@
-import Updux from "updux";
-import { action, payload } from "ts-action";
-import u from "@yanick/updeep";
-import { createSelector } from "reselect";
-import _ from 'lodash';
-
-const dux = new Updux({
-    initial: [],
-});
-
-const set_armour_nbr_layers = action('set_armour_nbr_layers',payload());
-
-dux.addMutation( set_armour_nbr_layers, nbr_layers => state => {
-    if( state.length > nbr_layers ) state = state.slice(0,nbr_layers);
-
-    if( state.length < nbr_layers ) {
-        state = [ state, _.times( nbr_layers - state.length, () => [] ) ].flat();
-    }
-
-    state = u.map( (el,i) => ({layer: i +1, rating: 0, cost: 0, mass: 0, ...el }), state);
-
-    return state;
-});
-
-dux.addMutation(
-    action('set_armour_layer', payload()),
-    ({layer, rating}) => u.map(
-        u.if(_.matches({layer}), u({
-            rating,
-            cost: 2 * layer * rating,
-            mass: 2 * rating,
-        }))
-    )
-);
-
-export default dux.asDux;
diff --git a/src/dux/structure/index.js b/src/dux/structure/index.js
deleted file mode 100644
index d9c683b..0000000
--- a/src/dux/structure/index.js
+++ /dev/null
@@ -1,26 +0,0 @@
-import Updux from "updux";
-import { action, payload } from "ts-action";
-import u from "@yanick/updeep";
-import { createSelector } from "reselect";
-
-import screens from './screens';
-import armour from './armour';
-
-const dux = new Updux({
-    initial: {
-      mass: 0,
-      cost: 0,
-      hull: {
-        rating: 1,
-        advanced: false,
-        cost: 2,
-        mass: 1,
-      }
-    },
-    subduxes: {
-        screens,
-        armour,
-    }
-})
-
-export default dux.asDux;
diff --git a/src/dux/test.js b/src/dux/test.js
deleted file mode 100644
index 43b3f13..0000000
--- a/src/dux/test.js
+++ /dev/null
@@ -1,17 +0,0 @@
-import tap from 'tap';
-
-import ship, { actions } from '.';
-
-ship.dispatch( actions.set_ship_mass(100));
-
-ship.dispatch( actions.set_ftl('standard'));
-
-tap.match(
-    ship.getState(),
-    { 
-        ship_type: { mass: 100 },
-        ftl: { type: 'standard', cost: 20, mass: 10 },
-    },
-    'standard ftl drive'
-);
-
diff --git a/src/dux/utils.js b/src/dux/utils.js
deleted file mode 100644
index f8f3fa5..0000000
--- a/src/dux/utils.js
+++ /dev/null
@@ -1,38 +0,0 @@
-import flow from 'lodash/fp/flow.js';
-import sumBy from 'lodash/fp/sumBy.js';
-import pick from 'lodash/fp/pick.js';
-import filter from 'lodash/fp/filter.js';
-import flattenDeep from 'lodash/fp/flattenDeep.js';
-import has from 'lodash/fp/has.js';
-
-const expand_cost_mass = (obj={}) => ([
-    pick(['cost','mass'],obj),
-    ...Object.values(obj || {}).filter( val => typeof val === 'object' ).map(
-        val => expand_cost_mass(val)
-    )
-]);
-
-export function calc_ship_req(ship) {
-
-    console.log(ship);
-    let { general, ...rest } = ship;
-
-    //if(!general) general = {};
-
-    const items = flow(
-        expand_cost_mass,
-        flattenDeep,
-        filter(has('cost'))
-    )({
-        ...rest,
-         cost: general.mass, mass: 0
-    })
-
-    return {
-        mass: sumBy('mass',items),
-        cost: sumBy('cost',items),
-    }
-}
-
-// to get around 3.00001 ceiling up to 4
-export const ceil = number => Math.ceil( Math.round(10*number)/10 );
diff --git a/src/dux/weaponry/index.js b/src/dux/weaponry/index.js
deleted file mode 100644
index fe64803..0000000
--- a/src/dux/weaponry/index.js
+++ /dev/null
@@ -1,21 +0,0 @@
-import Updux from "updux";
-import { action, payload } from "ts-action";
-import u from "@yanick/updeep";
-import { createSelector } from "reselect";
-
-import weapons from './weapons';
-import adfc from './adfc';
-
-const dux = new Updux({
-    initial: {
-        firecons: {
-            nbr: 0, cost: 0, mass: 0
-        }
-    },
-    subduxes: {
-        weapons,
-        adfc,
-    }
-})
-
-export default dux.asDux;
diff --git a/src/dux/weaponry/weapons/index.js b/src/dux/weaponry/weapons/index.js
deleted file mode 100644
index ced8058..0000000
--- a/src/dux/weaponry/weapons/index.js
+++ /dev/null
@@ -1,51 +0,0 @@
-import matches from 'lodash/matches.js';
-import Updux from "updux";
-import { action, payload } from "ts-action";
-import u from "@yanick/updeep";
-import { createSelector } from "reselect";
-import { weapon_cost_mass } from "../../weapons/rules";
-
-const add_weapon = action("add_weapon", payload());
-const remove_weapon = action("remove_weapon", payload());
-
-const uu = (transform) => (state) => transform(state)(state);
-
-const with_reqs = uu((weapon) => u(weapon_cost_mass(weapon)));
-
-const dux = new Updux({
-  initial: [],
-});
-
-const weapon_initial = {
-  beam: {
-    weapon_type: "beam",
-    weapon_class: 1,
-    arcs: ["F", "A", "FS", "FP", "AS", "AP"],
-  },
-  submunition: {
-    weapon_type: "submunition",
-    arcs: ["F"],
-  },
-  pds: { weapon_type: "pds" },
-  scattergun: { weapon_type: "scattergun" },
-  needle: { weapon_type: "needle", arcs: ["F"] },
-};
-
-dux.addMutation(add_weapon, (type) => (state) => {
-  const id = 1 + Math.max(0, ...state.map(({ id }) => id));
-  return [...state, { ...with_reqs(weapon_initial[type]), id }];
-});
-
-dux.addMutation(remove_weapon, (id) => (state) =>
-  state.filter((w) => w.id !== id)
-);
-
-const set_weapon = action("set_weapon", payload());
-
-dux.addMutation(set_weapon, (payload) =>
-  u.map(
-    u.if(matches({ id: payload.id }), (state) => with_reqs(u(payload, state)))
-  )
-);
-
-export default dux.asDux;
diff --git a/src/dux/weaponry/weapons/test.js b/src/dux/weaponry/weapons/test.js
deleted file mode 100644
index b74991b..0000000
--- a/src/dux/weaponry/weapons/test.js
+++ /dev/null
@@ -1,5 +0,0 @@
-import dux from ".";
-import tap from "tap";
-
-const state = dux.upreducer(dux.actions.add_weapon("beam"))([]);
-tap.equal(state[0].arcs.length, 6, "default beam is all arcs");
diff --git a/src/dux/weapons/rules.test.js b/src/dux/weapons/rules.test.js
deleted file mode 100644
index 58c6f2b..0000000
--- a/src/dux/weapons/rules.test.js
+++ /dev/null
@@ -1,29 +0,0 @@
-import tap from 'tap';
-import { weapon_cost_mass } from './rules';
-
-const cases = [
-    [{
-        weapon_type: "beam",
-        weapon_class: 2,
-        arcs: [ 'AP', 'A', 'AF' ]
-    },{
-        cost: 6,
-        mass: 2,
-    }
-    ],
-    [{
-        weapon_type: "beam",
-        weapon_class: 1,
-        arcs: [ 'AP', 'A', 'AF' ]
-    },{
-        mass: 1,
-        cost: 3,
-    }
-    ],
-    [{ weapon_type: "beam", weapon_class: 3, arcs: [ 'AP', 'A', 'AF' ] },{ mass: 6, cost: 18, } ],
-    [{ weapon_type: "beam", weapon_class: 4, arcs: [ 'AP', 'A', 'AF' ] },{ mass: 12, cost: 36, } ],
-]
-
-cases.forEach( ([weapon,expected]) => 
-tap.match( 
-    weapon_cost_mass(weapon), expected, JSON.stringify(weapon) ) );