todo

auto-enable of strict mode depending on compiler optimizaton level
property binding optimization
- would no longer allow cleanup() usage in binding scopes
solution to nested reactivity, see: SolidJS stores
investigate performance of wide graphs
optimize child removal
implement from solid:
- Portal
- batch
optimize indexes() double-diffing
define behavior of deriving a source within a derived source
review destruction of node under a root that has a child in another root