[Home Assistant Add-on] Build failure on amd64: $BUILD_FROM is blank and deprecated 'arch' values

[TomSuperHero124]

The Home Assistant Supervisor is unable to build the TadoLocal Server add-on (version 1.1.2). The build process fails during the Docker image creation because the required BUILD_FROM argument is empty.

Log:
span_5[supervisor.docker.addon] Starting build for bff476a8/amd64-addon-tado-local-server:1.1.2span_5
span_6[supervisor.docker.manager] Running command ... --build-arg 'BUILD_ARCH=amd64'span_6
...
span_7#1 WARN: InvalidDefaultArgInFrom: Default value for ARG $BUILD_FROM results in empty or invalid base image namespan_7
Dockerfile:2

1 | span_8ARG BUILD_FROMspan_8
2 | >>> span_9FROM $BUILD_FROMspan_9

span_10ERROR: failed to build: failed to solve: base name ($BUILD_FROM) should not be blankspan_10

Steps to reproduce:

1. Add the repository https://github.com/AmpScm/TadoLocal to Home Assistant. 
2. Attempt to install TadoLocal Server version 1.1.2 on an amd64 system. 
3. Installation fails with a Docker build error.

System Information:
• Home Assistant Environment: Supervisor 
• Add-on Version: 1.1.2 
• Target Architecture: amd64 
• Date of Log: 2026-04-14