You can either use the session-wide link, persistent links, or single-use links.

Session-wide link

If it is impractical to distribute distinct URLs to each participant, you can give the following start URL to all 40 participants.

https://floating-sierra-61355.herokuapp.com/join/3hbtq2y41y/

Note: unlike the other link modes, this does not prevent the same person from playing twice.

Persistent links

If you want to give your participants permanent links that don't change, you should create your session in a room.

Single-use links

Below are single-use links, which you can distribute to your participants. Each link has a unique code for the participant.

P1	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/jwxjpiif
P2	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/0dw7dc88
P3	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/f7yau1v0
P4	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/v0w6lsei
P5	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/dkhi8fc0
P6	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/dj7cxuz5
P7	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/xh26dc0l
P8	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/mu134cqa
P9	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/eng23tnp
P10	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/y9nyfkuw
P11	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/gmoosxbf
P12	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/ooxiitzb
P13	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/df9nt4dv
P14	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/z31hjfxj
P15	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/ibo54jx5
P16	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/cl84c1r9
P17	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/q2ild6ek
P18	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/wtwy666o
P19	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/cw32xvvy
P20	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/8u9mvknp
P21	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/4csptadi
P22	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/bsztxl7i
P23	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/b1kehba3
P24	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/pc51cg8g
P25	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/zkys2du2
P26	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/rosxte7k
P27	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/060jzom1
P28	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/gvd95xtv
P29	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/42xaz4xh
P30	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/u1zrghaq
P31	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/dny11bq0
P32	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/y0ykhvl6
P33	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/j03x0u5d
P34	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/9vkgfqf0
P35	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/tnzivb1x
P36	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/ldbck6sq
P37	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/07xphtay
P38	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/obvlynuk
P39	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/za4177k3
P40	https://floating-sierra-61355.herokuapp.com/InitializeParticipant/doxr5050