UPDATE: fsm-toolkit

New in the FSM toolkit:

Code generation — export your state machines to C, Rust, or Go (TinyGo compatible). Zero dependencies, embedded-friendly.
fsm analyse — catches unreachable states, dead ends, non-determinism, and unused symbols before they bite you.
Editor improvements — undo/redo (Ctrl+Z/Y), toggle wires with W, states always visible over arcs, parallel transitions no longer overlap.
Quick image export — fsm png / fsm svg without piping through dot.

Still a compact hex format at heart that fits in your head!

Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`