Epiphany: Systemd reads more than a single environment file. This
lets me improve the file naming much.

Unfortunately still prints a bold warning on deployment.

This will store the supposedly secret URL in the Nix Store and
print a honking big warning about it.

Only dashboards in this dir

Update payment metric names

See merge request privatestorage/PrivateStorageio!179

... to be in sync with https://github.com/PrivateStorageio/PaymentServer/pull/98

Add a script to update nixos version, and run it.

Closes #83

See merge request privatestorage/PrivateStorageio!165

upgrade PaymentServer

See merge request privatestorage/PrivateStorageio!178

continuously deploy develop to staging

Closes #82

See merge request privatestorage/PrivateStorageio!175

Change the on-grid continuous deployment tool to deploy the "develop" branch to the staging grid

See merge request privatestorage/PrivateStorageio!176

Avoid copying nixpkgs to the store a second time in nix-shell.

See merge request privatestorage/PrivateStorageio!168

Quotes required for correct operation if there are spaces or some other
shell-special characters

Allow building the local grid with a clean checkout.

Closes #86

See merge request privatestorage/PrivateStorageio!171

Move NixOS systems tests to `nixos/tests`.

See merge request privatestorage/PrivateStorageio!173

Don't include vagrant in shell.nix if running in a container.

See merge request privatestorage/PrivateStorageio!167

Don't wait for cerbot before starting PaymentServer.

See merge request privatestorage/PrivateStorageio!170

Remove some out of date references.

See merge request privatestorage/PrivateStorageio!169

Since !146, PaymentServer is proxied behind nginx, so there is no need to wait
for certificates or network interfaces before starting the server.