nixos dev environment for timenaut

[mipmip]

use nixos branch

git checkout nixos

fix ssl errors

npm run build  --openssl_fips=''

Workaround replace 7za with system version:

cd /node_modules/builder-util/node_modules/7zip-bin/linux/x64
rm 7za
which 7za
ln -s /nix/store/6ca7kgc4i0xsy9ml8s08kk3pgzgvyqsq-p7zip-17.04/bin/7za 7za

npm run build  --openssl_fips=''

Workaround mksquashfs

cd ~/.cache/electron-builder/appimage/appimage-12.0.1/linux-x64
rm mksquashfs
which mksquashfs
ln -s /nix/store/12vayryrjbd4vvvfikggq136ian3268a-squashfs-4.5.1/bin/mksquashfs mksquashfs