- terminal 1
```
cd services
yarn run-blob-service-dev-mode
```
- terminal 2
```
cd services
yarn run-backup-service-dev-mode
```
- terminal 3
```
git clone https://github.com/karol-bisztyga/grpc-playground.git
cd grpc-playground
git checkout backup-async
./build.sh
./cmake/build/bin/client
```
- in terminal 3 create a new backup with `n`
- check the database and see the empty string in `attachmentHolders` in the newly created item
- add new attachments: in terminal 3 use `b`
- check the database again and see new attachments in `attachmentHolders` in the newly created item
- do a similar thing for the logs: first, use `l` and then `k`