We have discussed that long term, we will move the three methods currently served via the dalc will be served via a standard celestia-node instead celestiaorg/celestia-node#414 (comment) celestiaorg/celestia-node#414 (comment).
However, optimint's multi aggregator node network is blocked by these features, so a short term solution is in order so that we can continue building that.
One possible solution was to create a branch on celestia-node that incorporates a slightly more generalized version of the dalc server, and another is to use the preexisting Plugin implementation #55