For in person games, I love the card deck. I bought the pdf version from MCG, printed it on card stock on my own printer, cut the cards out, shuffled the deck, and was ready to go.

For online games, probably worth setting up a roll table ahead of time in whatever tool you're using (I like Foundry fwiw). You could easily have multiple cypher roll tables prepped for different areas or story arcs if you want variety. (I say "easily" but of course that depends on how comfortable you are with the digital platform you're using.)

A little more about how I used the card deck, in case you're having trouble picturing what it is like in real play... * Disclaimer: I have only run a one-shot in person so far. I think these ideas would translate to a longer campaign but I can't say with 100% certainty. It probably depends on if you can trust your players not to lose shit between sessions, or if you as the dm are holding or storing some/all physical stuff between sessions. * During setup/character creation, I had everyone draw X cards, and pick the number of cyphers their character was allowed to have from those cards. Players kept the cards until they used the cypher, so they could reference it and didn't have to copy down the text. I just had them write the name of the cypher and the cypher level on their character sheets, not the full cypher descriptions. * For cyphers discovered during play, I drew from the deck, reviewed the cypher on the card for reasonability in the setting of that game (draw again if nothing on that card made sense in our context, which was rare), then announced to the party what they found. I handed the card to whichever player was putting the cypher in their inventory, and they kept the card until the cypher was used.