The package permits writing pseudocode without much fuss and with quite a bit of configurability. Its main environment combines aspects of enumeration, tabbing and tabular for nonintrusive line numbering, indentation and highlighting, and there is functionality for typesetting common syntactic elements such as keywords, identifiers, and comments. The package relies on aliascnt, array, colortbl, expl3, l3keys2e, xcolor, and xparse.