setup.sh fails with "fatal: reference is not a tree" or c++ compilation errors

I tried to install this awesome-looking program in a docker container, but it fails trying to check out some git SHA. :-(

I admit having zero knowledge of the node.js ecosystem, so this might be something trivial, but is a show-stopper for me. Please help!

```
Sending build context to Docker daemon 927.2kB
Step 1/6 : FROM debian:stable
---> a06aa514c943
Step 2/6 : RUN apt-get update
---> Using cache
---> 7b34fe6a20f3
Step 3/6 : RUN apt-get install -y yarn npm jq ledger
---> Using cache
---> 2f772658344a
Step 4/6 : RUN apt-get install -y git
---> Using cache
---> 3c55d6b06f20
Step 5/6 : ADD . .
---> Using cache
---> 9ed47f9abe83
Step 6/6 : RUN ./setup.sh
---> Running in 28e3928ebe20
npm WARN npm npm does not support Node.js v10.23.1
npm WARN npm You should probably upgrade to a newer version of node as we
npm WARN npm can't make any promises that npm will work with this version.
npm WARN npm Supported releases of Node.js are the latest release of 4, 6, 7, 8, 9.
npm WARN npm You can find the latest version at https://nodejs.org/
npm ERR! code 128
npm ERR! Command failed: /usr/bin/git checkout 7e8f907ed1d6738914def21bbd3ad724017bbb4f
npm ERR! fatal: reference is not a tree: 7e8f907ed1d6738914def21bbd3ad724017bbb4f
npm ERR!

npm ERR! A complete log of this run can be found in:
npm ERR! /root/.npm/_logs/2021-01-20T21_11_15_933Z-debug.log
./setup.sh: line 4: cd: ./node_modules/just-dashboard-desktop/: No such file or directory
npm WARN npm npm does not support Node.js v10.23.1
npm WARN npm You should probably upgrade to a newer version of node as we
npm WARN npm can't make any promises that npm will work with this version.
npm WARN npm Supported releases of Node.js are the latest release of 4, 6, 7, 8, 9.
npm WARN npm You can find the latest version at https://nodejs.org/
npm ERR! code 128
npm ERR! Command failed: /usr/bin/git checkout 7e8f907ed1d6738914def21bbd3ad724017bbb4f
npm ERR! fatal: reference is not a tree: 7e8f907ed1d6738914def21bbd3ad724017bbb4f
npm ERR!

npm ERR! A complete log of this run can be found in:
npm ERR! /root/.npm/_logs/2021-01-20T21_11_25_607Z-debug.log
npm WARN npm npm does not support Node.js v10.23.1
npm WARN npm You should probably upgrade to a newer version of node as we
npm WARN npm can't make any promises that npm will work with this version.
npm WARN npm Supported releases of Node.js are the latest release of 4, 6, 7, 8, 9.
npm WARN npm You can find the latest version at https://nodejs.org/
npm ERR! missing script: dist:dir

npm ERR! A complete log of this run can be found in:
npm ERR! /root/.npm/_logs/2021-01-20T21_11_26_315Z-debug.log
```

Start with setup.sh and reproduce the Docker build shown in the issue, then inspect the npm dependency that runs git checkout for the missing SHA. Trace the subsequent node_modules path and build command. Done means setup.sh completes without the checkout, missing-directory, or build errors in this environment.

Written by the indexing model from the issue text.