This tweet from Peter Beck indicates that Rocket Lab has successfully completed ignition system tests as they close in on a full hot fire of Archimedes. This is an important step in Archimedes' development process, as the ignition system is a critical component that must function reliably to ensure a successful engine test.
Based on the information provided, it seems the team is making steady progress towards their goal of a hot fire test. A recent tweet by Jeff Foust suggests that it could occur in the next ten days or so. The successful ignition system tests are a positive sign, as they demonstrate the team’s ability to integrate and validate key subsystems of the rocket engine.
The fact that the last two testing images shared by the team were taken at night suggests the team has been working around the clock to advance their progress. This level of dedication and commitment is crucial in the fast-paced world of rocket development, where every minute counts towards achieving key milestones.