✨ Features Print CLI messages when no physical layer or model evals occurred (#4113) @treysp Add custom exception for signal eval errors (#4141) @eakmanrq 🪲 Bug fixes Include stacktrace in signal eval error message (#4143) @eakmanrq 🧹 Chore Refactor the state stream interface (#4125) @erindru 👽 Other Add custom loader example (#4136) @treysp