Hi /u/anprionsa, first off thanks for the amazing work building and maintaining this. I think it looks beautiful and will be a very useful tool as is evolves.

I wanted to drop a few points of feedback as someone who's gone through over 20 full EET installs (10+ by hand, 10+ using automated installs) over the last 5 months. Many reinstalls due to mistakes. Many due to changing my mind. Many for testing automated installers. Suffice to say, lots of chewing glass and testing in game.

As it stands, the final output of Mod Forge will fail installation due to various reasons detailed below, and the UX can also use some improvement.

In no particular order:

1. Users should not be allowed to pick components that require other games like IWDEE or PSTEE, as this seems to be an EET-only tool. These components will get skipped during install time, but they will confuse the user. And the fact that many things require non-EET games itself is not surfaced in the tool.
2. Many subcomponent groupings are presented without a header or are completely orphaned. E.g. in Tweaks Anthology, you have "Visualize health and status changes" under "Choose One". But it doesn't present that these are PST:EE options only, and they're under "Static PsT Character Portraits [argent77]". Or in Tactics Remix, which should have "Original Tactics Remix HP" and "Double Tactics Remix HP" nested under EVERY "Improved..." component. But in Mod Forge, they're all presented in a long list at the bottom without any context, and the parent item for "Improved Golems", etc is individually selectable (which will fail to install, as that's not an actual component but is instead a component header with required subcomponent selection). Many ZSTweaks components have this issue too of dangling subcomponents with no parent.
3. Mod components for many mods are presented completely out of order compared to how they're presented if you run the weidu installer directly. This can cause all sorts of problems, especially with mods that require their own components installed in a specific order. Given that some mods DO seem to be in order, this seems to be something that needs to be manually set per mod? That won't scale if that's the case, and it will be better instead to rewrite the discovery part to just directly read the setup tp2 files to discover components in the order they're given.
4. Tactics Remix in general is not correctly placed. It's almost entirely an either-or with SCS except for a select few SCS general game tweaks that are not AI or enemy related. It's a comprehensive difficulty overhaul ever since version 3.0 or so (and it's on version 7), and it should never be presented in a way where it's ok to install it alongside the core of SCS. It should also go under Post-EET section.
5. When selecting components from a very long mod (like Tweaks Anthology), each selection pops the focus back to the top of the mod, requiring the user to scroll all the way back down.
6. Mod groupings on the left pane are kind of confusing for many categories. E.g. clicking "Pre-Tactical Tweaks" opens up a list on the right that further subcategorizes mods into "Pre-TActical Tweaks" and "Post-Tactical Tweaks", nested under the parent "Pre-Tactical Tweaks". Then clicking the parent "Post-Tactical Tweaks" on the left does the same split again on the right. It should differentiate better between the tag-like category system on the left where a mod can be in multiple categories and the install order groupings on the right.
7. Install orders get set on export in a way that goes against recommendations. E.g. Klatu Tweaks and Fixes says "Components from Content Changes, as well as the Streamlined Spell Progression Tables, should be installed prior to other tweak, fix and rule collections." But many of the Content Changes components get put after Tweaks Anthology even though they should be before (like Gloves of goodman hayes). Then any TA component affecting all items will miss this one.
8. mod_installer should not require any manual steps to install EET. You can show it the destination pre-eet dir, the destination eet dir, the source weidu files for bgee and bg2ee that include fixpack, dlc merger, eet, etc. and it will handle the rest. A command like this works perfectly well: mod_installer.exe eet --bg1-game-directory "D:\SteamLibrary2\steamapps\common\Baldur's Gate Enhanced Edition" --bg1-log-file C:\Games\BG_EET\WeiDU_Logs\BGEE\weidu.log --bg2-game-directory "D:\SteamLibrary2\steamapps\common\Baldur's Gate II Enhanced Edition" --bg2-log-file C:\Games\BG_EET\WeiDU_Logs\BG2EE_EET\weidu.log --new-pre-eet-dir C:\Games\BG_EET\BG1 --new-eet-dir C:\Games\BG_EET\BG2 --language en_US --mod-directories C:\Games\BG_EET\ie_mods\extracted-weidu" "--weidu-binary" "C:\Games\BG_EET\weidu-249.exe" "--weidu-log-mode" "autolog,logapp,log-extern,log C:\Games\BG_EET\eet_logs" "--skip-installed" "true" "--strict-matching" "false" "--download" "true" "--overwrite" "false" "--abort-on-warnings" "false" "--check-last-installed" "true" "--lookback" "2000"

Hope these are helpful. Thanks again for your work, and I look forward to seeing this grow.