Problem Path erigon3.0.6 and integrate erigon app

[hyroshyack]

Hello everyone,
I’m completely stuck with Erigon 3.0.6 in my crypto arbitrage application on Windows 11 Ultimate Edition (Intel Core i5, 32 GB RAM, Crucial X9 4 TB SSD). My app, coded in Python 3.11 with PyQt5 (~13,000 lines), needs to launch an Ethereum node in full sync mode with snapshots from an integrated console and interact via Web3.py. However, I keep running into errors with Erigon’s flags, and I can’t get the node to work properly.
My setup:

Erigon 3.0.6: E:\erigon\erigon-3.0.6\build\bin\erigon.exe
Python 3.11: Virtual environment in E:\RACINE\venv
Paths:
    Data: E:\erigon_data\chaindata
    Snapshots: E:\erigon_data\snapshots (2.3-2.5 TB, decompressed, for Erigon 3.0.4 from https://snapshots.publicnode.com/ethereum-erigon-22717760.tar.lz4)
    JWT: E:\erigon_data\jwt.hex
    Temp: E:\erigon_data\temp
    Ethash: E:\erigon_data\ethash
Application: In E:\DOSSIER RACINE, with an integrated console (QTextEdit)
Python dependencies: PyQt5 (5.15.11), web3 (7.11.1), psutil (7.0.0), validators (0.35.0), qiskit (2.0.2)

Commands tested and errors:

Initial command:

E:\erigon\erigon-3.0.6\build\bin\erigon.exe --datadir E:\erigon_data --snapshots E:\erigon_data\snapshots --authrpc.jwtsecret E:\erigon_data\jwt.hex --http --http.api=eth,debug,net,trace,web3,erigon --http.port=8545 --http.addr=127.0.0.1 --authrpc.port=8551 --authrpc.addr=127.0.0.1 --maxpeers=64 --cache=16384

Error: flag provided but not defined: -snapshots

Corrected command (without --snapshots):

.\erigon.exe --datadir E:\erigon_data --authrpc.jwtsecret E:\erigon_data\jwt.hex --http --http.api=eth,debug,net,trace,web3,erigon --http.port=8545 --http.addr=127.0.0.1 --authrpc.port=8551 --authrpc.addr=127.0.0.1 --maxpeers=64 --cache=16384 --db.tempdir E:\erigon_data\temp

Error: flag provided but not defined: -cache

New attempt with --state.cache:

.\erigon.exe --datadir E:\erigon_data --authrpc.jwtsecret E:\erigon_data\jwt.hex --http --http.api=eth,debug,net,trace,web3,erigon --http.port=8545 --http.addr=127.0.0.1 --authrpc.port=8551 --authrpc.addr=127.0.0.1 --maxpeers=64 --state.cache=16384M --db.tempdir E:\erigon_data\temp --ethash.dagdir E:\erigon_data\ethash

Error: flag provided but not defined: -db.tempdir

Snapshot verification:

.\erigon.exe snapshots --datadir E:\erigon_data

Error: flag provided but not defined: -datadir
My questions:

What are the correct flags for Erigon 3.0.6 to enable snapshots in E:\erigon_data\snapshots? Is the --snapshots flag obsolete, and if so, how do I manage snapshots?
How do I replace --cache and --db.tempdir in Erigon 3.0.6? For example, is --state.cache the right flag to allocate 16 GB of RAM? How do I specify a temporary directory on E:?
How can I ensure Erigon only uses my paths on E: (E:\erigon_data\chaindata, E:\erigon_data\snapshots, E:\erigon_data\ethash) and avoids C:\Users\DELL\AppData\Local?
Are my snapshots for Erigon 3.0.4 compatible with 3.0.6? If not, where can I find snapshots for 3.0.6?
In my app, I launch Erigon via subprocess.Popen and display logs in a QTextEdit. What are best practices for handling errors and capturing logs in real-time?
With 32 GB RAM and a 4 TB SSD, should I adjust flags like --prune.mode, --state.cache, or others to optimize sync?
Why does the snapshots command not recognize --datadir? How can I verify the validity of my snapshots?

What I want:
I want to launch Erigon 3.0.6 from my app’s console, use my snapshots to speed up sync, and interact with the node via Web3.py on http://127.0.0.1:8545. I’m really struggling with the flags and configuration, and I need help to resolve this.
Thank you so much for your time and advice! Your help would be invaluable to get my node running in my crypto arbitrage app.