The router began as a port of FreeRouting and has grown its own engine
(negotiated congestion, tree nets, exact checks, axis escapes), and
'freeroute' was one letter from the project it no longer follows. The
package, module and command are now rpmroute; the freeroute command stays
as an alias, and the RPMROUTE / RPMROUTE_ORACLE_JAVA variables fall back
to the old FREEROUTE names. Version 2026.10.07. Routing is unchanged: a
PCBench board routes to a byte-identical session either way.
Adds shove_needed.dsn: one signal layer (no vias), where NET_A routes as
a straight wall that boxes NET_C out under greedy ordering. Tests assert
the contrast: without shove NET_C is dropped (result still DRC-clean, just
incomplete); with shove NET_A is moved aside and both nets connect, the
exact has_violation check is clean, endpoints stay on pads, and the result
is deterministic. Regression tests confirm shove is a no-op on the simple/
crossing/ripup/kicad boards (same connectivity, DRC-clean, zero shoves).
Oracle-gated parity is included (skips when the JAR cannot route the
synthetic single-layer board).
rsp2k