To get the secret painting, you need to have at least 3 people playing, so obviously I couldn't get it solo. The spectrophotometer does count as an extra bag though. This was recorded before Syntax Error, but I couldn't get around to editing it. The NFT painting mod is great.
Mods:
NFT paintings https://modworkshop.net/mod/44364
Coloured HUD Buffs https://modworkshop.net/mod/44335
Coloured Buffs https://modworkshop.net/mod/44192
Challenge Notifications https://modworkshop.net/mod/44921
Escape Van OVERKILL https://modworkshop.net/mod/45038
Heist Timer https://modworkshop.net/mod/44818
Hotline Miami Play Buttons https://modworkshop.net/mod/45861
Hotline Miami Stickers https://modworkshop.net/mod/45530
Damage Popup HUD https://modworkshop.net/mod/44162
Simple Armour + Health HUD https://modworkshop.net/mod/44000
Lead Nerd Guard https://modworkshop.net/mod/45642
PD2 Assault Indicator https://modworkshop.net/mod/43902
Secure Bag Notifications https://modworkshop.net/mod/45230
Theme from Battery https://modworkshop.net/mod/44832