+
+Various ideas:
+- scores dependent on time (like PL olympiad)
+
+TomGav
+~~~~~~
+recursive try-ln for dir input
+clean and well-defined expansion (beware of per-test re-expansion)
+configurable names of in/out files (independent of $PROBLEM)
+paranoidly check file mode/owner before running the sandbox
+
+Isolate
+~~~~~~~
+Test: ptrace self
+Test: SIGSTOP
+Test: ping-pong timing attacks
+Test: big static memory
+Examine the use of taskstats for measuring memory
+Switch license to GPL2/GPL3
+Options for specifying real-time scheduling
+Setting of general cgroup attributes, like CPU pinning