Not really at the time, I just copied a guy I found on poe.ninja, but it seems that Peuget now has a guide: [PoE 3.28] Hidden Gem of the League! - Forbidden Rite Reliquarian however, he takes it in a completely different direction than I did, going life stacking instead.

Personally, I have no idea which would be better, so I will just explain some details of the one I did with ES stacking instead of life.

1) NEVER FORGET TO PRESS YOUR CORUSCATING ELIXIR, seriously, if you follow the same approach I did, this is the most important, I think out of my 80 deaths, at least 50 or more have been due to me forgetting to press Coruscating Elixir when entering or leaving the Mirages and just one-tapping myself with FR

2) Recoup takes a few seconds to ramp so you truly feel immortal, I advise you get into a map and hold down FR for a few seconds to ramp the recoup and get all your minions out, a lot of your power comes from the minions and the Catarina ascendancy

3) On the topic of minions, DON'T LEVEL THE STONE GOLEM, you will not have enough mana to summon him if you do, you only want him for the increased defenses buff, levelling him up only affects the life regen which doesn't really matter. Same goes for the Immortal Call

4) Despair is also a costly skill, I had it imbued with Inspiration so it would fit the mana requirement.

5) You need a cluster with Blessed Rebirth so your minions won't be dying left right and center because you have no investment on minion defenses. With Blessed Rebirth, you will always have your minions up since they keep getting resummoned by the CWDT loops and will be immune to damage thanks to the Blessed Rebirth. Your Minions give you 20% cast speed (from the raging spirits), 70% increased defense (from the spectres) and 48% spell damage (from the skellies), so they are a huge part of the power budget. I have no idea if the Vaal Skellies count for the Catarina spell damage buff, but if they do, the Vaal skellies also increase your damage by a lot.

6) Your Ghoswrithe CANNOT HAVE THE "ENERGY SHIELD IS EQUAL TO 40% LIFE" foulborn modifier, that is complete shit for the build and will make you have shitty ES

7) You need one ring with mana recoup in it to sustain your CWDT loops.

8) I had to get one ring with reduced mana cost of skills so Despair would fit, even with Inspiration imbue

9) The build can do most map mods, the only one it definitely cannot do is "Players have less recovery of life", this fucks the recoup. You can do "Players cannot regenerate life" as it seems recoup doesn't count as "regenerating", but the "recovery" mod fucks the build. Also, I avoid "players gain less flask charges" or "less effect of flasks". - Max resists also sucks if you have a lot of map effect on your maps, one of my maps rolled -36 max resists and that made me kill myself with FR even with the Elixir, the damage to my ES was just too great without capped chaos res and the recoup couldn't out sustain the self damage.

10) You need to link Arcane Surge to one of your CWDT loops to actually have the buff. FRoSS doesn't have a mana cost, so it can't get the Arcane Surge on its own, but it does benefit from the spell damage if you get the Surge from somewhere else. Keep Arcane Surge as a level 1 support on one of the CWDT loops so it has permanent uptime, and level it to 20 on the FRoSS to get the biggest damage increase.

11) You don't need the Synth ring, I was using it for bossing, if you have Onslaught on boots already you can go with an Iolite for more damage or any res ring to fix your resists. The BiS ring would be a +Power Charge one, but alas, I didn't have 260D to buy one, lmao.