try commenting out ledger support

source/main/ipc/getHardwareWalletChannel.js

@@ -1,7 +1,7 @@
 // @flow
 /* eslint-disable no-console */
 // @TODO - enable console once connecting logic refined
-import TransportNodeHid from '@ledgerhq/hw-transport-node-hid';
+//import TransportNodeHid from '@ledgerhq/hw-transport-node-hid';
 import AppAda, { cardano } from '@cardano-foundation/ledgerjs-hw-app-cardano';
 import { BrowserWindow } from 'electron';
 // $FlowFixMe

yarn2nix.nix

@@ -121,7 +121,12 @@ yarn2nix.mkYarnPackage {
     rm -rf $out/resources/app/{installers,launcher-config.yaml,gulpfile.js,home}
 
     mkdir -pv $out/resources/app/node_modules
-    cp -rv $node_modules/js-chain-libs-node $out/resources/app/node_modules/
+    cp -rv $node_modules/{\@babel,regenerator-runtime,node-fetch,\@trezor,runtypes,parse-uri,randombytes,safe-buffer,bip66,pushdata-bitcoin,bitcoin-ops,typeforce,varuint-bitcoin,bigi,create-hash,merkle-lib,blake2b,nanoassert,blake2b-wasm,bs58check,bs58,base-x,create-hmac,ecurve,wif,ms,keccak,trezor-link,semver-compare,protobufjs-old-fixed-webpack,bytebuffer-old-fixed-webpack,long,object.values,define-properties,object-keys,has,function-bind,es-abstract,has-symbols,json-stable-stringify,tiny-worker,hd-wallet,cashaddrjs,big-integer,queue,inherits,bchaddrjs,cross-fetch,trezor-connect,js-chain-libs-node} $out/resources/app/node_modules
+
+    #mkdir -pv $out/build
+    #cp node_modules/usb/build/Debug/usb_bindings.node $out/build/usb_bindings.node
+    #cp node_modules/node-hid/build/Debug/HID-hidraw.node $out/build/HID-hidraw.node
+    #mv -vi logfiles* $out/
   '' else ''
     mkdir -pv home/.cache/
     export HOME=$(realpath home)