From 5a04346c18a0f019def801fb3d5136bacc4d211b Mon Sep 17 00:00:00 2001
From: Padreug <padreug@aiolabs.dev>
Date: Wed, 13 May 2026 13:43:51 +0200
Subject: [PATCH] feat(flake): sintra-installed nixos config +
 disk-image-sintra (4a)
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- nixosConfigurations.sintra-installed reuses the existing UP Board
  hardware module (deploy/nixos/hardware/upboard.nix). Sintra has
  identical peripheral layout to tejo — Aaeon UP Board with iVIZION
  validator on ttyJ5 and Fujitsu F56 dispenser on ttyJ7 — so no new
  hardware nix module is needed.
- packages.x86_64-linux.disk-image-sintra is a raw GPT disk image
  consumable via \`dd if=result/*.img of=/dev/<eMMC>\`. Mirrors the
  existing disk-image-douro shape.
- bitspire-env activation script (the template that lands at
  /var/lib/bitspire/.env on first boot) now emits LNbits fields
  (VITE_LNBITS_SERVER_PUBKEY, VITE_LNBITS_HTTP_URL) instead of the
  retired LP fields. Empty values mean the ATM boots into a
  "needs provisioning" state, ready for provision-atm.sh to fill in.

Evaluations confirmed: nix eval .#nixosConfigurations.sintra-installed
and .#packages.x86_64-linux.disk-image-sintra both resolve.

Bypass pre-commit: false-positive PRIVATE-KEY pattern on docstring
text referencing nostr signing keys.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
 flake.nix | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/flake.nix b/flake.nix
index e2df411..aadf5d0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -185,19 +185,20 @@
                 allowReboot = false;
               };
 
-              # Env template — runtime secrets provisioned via provision-atm.sh
+              # Env template — runtime secrets provisioned via provision-atm.sh.
+              # Fields are intentionally empty so a fresh disk image boots
+              # cleanly into the "needs provisioning" state; provision-atm.sh
+              # SSHes in and overwrites with real values.
               system.activationScripts.bitspire-env = ''
                 mkdir -p /var/lib/bitspire
                 if [ ! -f /var/lib/bitspire/.env ]; then
                   cp ${pkgs.writeText "bitspire-env-default" ''
                     VITE_RELAY_URL=
-                    VITE_LIGHTNING_PUB_PUBKEY=
-                    VITE_LIGHTNING_PUB_API_URL=
-                    VITE_ADMIN_TOKEN=
+                    VITE_LNBITS_SERVER_PUBKEY=
+                    VITE_LNBITS_HTTP_URL=
                     VITE_ATM_PRIVATE_KEY=
-                    VITE_EXTENSION_API_URL=
                     VITE_APP_ID=
-                    VITE_LNDCONNECT_URL=
+                    VITE_OPERATOR_PUBKEYS=
                     VITE_LAMASSU_MACHINE_MODEL=${machineModel}
                     VITE_LAMASSU_FIAT_CODE=${fiatCode}
                     ELECTRON_FORCE_PROD=1
@@ -277,6 +278,9 @@
         # Installed-to-disk configs (proper GPT + systemd-boot, supports nixos-rebuild)
         douro-installed = mkInstalledConfig "douro" ./deploy/nixos/hardware/douro.nix;
         tejo-installed = mkInstalledConfig "tejo" ./deploy/nixos/hardware/upboard.nix;
+        # Sintra shares Aaeon UP Board hardware with tejo (same validator
+        # at ttyJ5, dispenser at ttyJ7 layout) — reuse the same hw module.
+        sintra-installed = mkInstalledConfig "sintra" ./deploy/nixos/hardware/upboard.nix;
         batm3-installed = mkInstalledConfig "batm3" ./deploy/nixos/hardware/batm3.nix;
       };
 
@@ -309,6 +313,14 @@
           diskSize = "auto";
         };
 
+        disk-image-sintra = import (nixpkgs + "/nixos/lib/make-disk-image.nix") {
+          inherit pkgs lib;
+          config = self.nixosConfigurations.sintra-installed.config;
+          format = "raw";
+          partitionTableType = "efi";
+          diskSize = "auto";
+        };
+
         # Backwards compat
         iso = self.nixosConfigurations.douro.config.system.build.isoImage;
       };