diff --git a/all_groups.json b/all_groups.json
new file mode 100644
index 0000000..ac8512d
--- /dev/null
+++ b/all_groups.json
@@ -0,0 +1,600 @@
+{
+	"_0": "This is a file containing all groups slugs from https://cri.epita.fr/api/v2/groups/",
+	"_1": "It was generated using CriApi.get_all_groups()",
+	"groups": [
+		"administratives-site-directors",
+		"administratives",
+		"asso-prologin",
+		"asso-responsable",
+		"auditors",
+		"bocal",
+		"cri-olds",
+		"cri-roots",
+		"cri-service-accounts",
+		"cri-students",
+		"cri",
+		"cyber-cyb1-prs",
+		"cyber-cyb1-s1-prs",
+		"cyber-cyb1-s1",
+		"cyber-cyb1-s2-prs",
+		"cyber-cyb1-s2",
+		"cyber-cyb1",
+		"cyber-cyb2-prs",
+		"cyber-cyb2-s3-prs",
+		"cyber-cyb2-s3",
+		"cyber-cyb2-s4-prs",
+		"cyber-cyb2-s4",
+		"cyber-cyb2",
+		"cyber-cyb3-prs",
+		"cyber-cyb3-s5-prs",
+		"cyber-cyb3-s5",
+		"cyber-cyb3-s6-prs",
+		"cyber-cyb3-s6",
+		"cyber-cyb3",
+		"cyber-scolarite",
+		"cyber",
+		"department-cip",
+		"department-cri-manager",
+		"department-dg",
+		"department-forge-employees",
+		"department-forge-managers",
+		"exp-m1-prs",
+		"exp-m1-s5-prs-representatives",
+		"exp-m1-s5-prs",
+		"exp-m1-s5",
+		"exp-m1-s6-prs-representatives",
+		"exp-m1-s6-prs",
+		"exp-m1-s6",
+		"exp-m1",
+		"exp-m2-prs",
+		"exp-m2-s7-prs-representatives",
+		"exp-m2-s7-prs",
+		"exp-m2-s7",
+		"exp-m2-s8-prs-representatives",
+		"exp-m2-s8-prs",
+		"exp-m2-s8",
+		"exp-m2",
+		"exp-m3-prs",
+		"exp-m3-s10-prs-representatives",
+		"exp-m3-s10-prs",
+		"exp-m3-s10",
+		"exp-m3-s9-prs-representatives",
+		"exp-m3-s9-prs",
+		"exp-m3-s9",
+		"exp-m3",
+		"exp",
+		"forge-ing1",
+		"forge-interns",
+		"forge-prod-devs",
+		"forge-prod",
+		"forge-roots",
+		"forge-staff",
+		"forge-students",
+		"forge",
+		"guests-cats",
+		"guests",
+		"ing-app-i1-s5-prs-representatives",
+		"ing-app-i1-s5-prs",
+		"ing-app-i1-s6-prs-representatives",
+		"ing-app-i1-s6-prs",
+		"ing-app-i2-s7-prs-representatives",
+		"ing-app-i2-s7-prs",
+		"ing-app-i2-s8-prs-representatives",
+		"ing-app-i2-s8-prs",
+		"ing-app-i3-s10-prs-representatives",
+		"ing-app-i3-s10-prs",
+		"ing-app-i3-s9-prs-representatives",
+		"ing-app-i3-s9-prs",
+		"ing-assistants-acu-respos-42sh",
+		"ing-assistants-acu-respos-harmonisation",
+		"ing-assistants-acu-respos-httpd",
+		"ing-assistants-acu-respos-malloc",
+		"ing-assistants-acu-respos-minimake",
+		"ing-assistants-acu-respos-myfind",
+		"ing-assistants-acu-respos-piscine",
+		"ing-assistants-acu-respos-sql",
+		"ing-assistants-acu",
+		"ing-assistants-chefs",
+		"ing-assistants-cpi",
+		"ing-assistants-deadlines",
+		"ing-assistants-devs",
+		"ing-assistants-director-42sh",
+		"ing-assistants-director-asm",
+		"ing-assistants-director-chess",
+		"ing-assistants-director-cpp",
+		"ing-assistants-director-harmonisation-mpc",
+		"ing-assistants-director-harmonisation-prog",
+		"ing-assistants-director-harmonisation",
+		"ing-assistants-director-httpd",
+		"ing-assistants-director-java",
+		"ing-assistants-director-malloc",
+		"ing-assistants-director-minimake",
+		"ing-assistants-director-myfind",
+		"ing-assistants-director-piscine",
+		"ing-assistants-director-prerentree",
+		"ing-assistants-director-spider",
+		"ing-assistants-director-sql",
+		"ing-assistants-director-tiger",
+		"ing-assistants-directors-js",
+		"ing-assistants-gitlab-manager",
+		"ing-assistants-guests",
+		"ing-assistants-intendants",
+		"ing-assistants-moulettes",
+		"ing-assistants-others",
+		"ing-assistants-pypi-admins",
+		"ing-assistants-respos-calins",
+		"ing-assistants-reviews",
+		"ing-assistants-roots",
+		"ing-assistants-toolchain",
+		"ing-assistants-yaka-respos-chess",
+		"ing-assistants-yaka-respos-cpp",
+		"ing-assistants-yaka-respos-java",
+		"ing-assistants-yaka-respos-js",
+		"ing-assistants-yaka-respos-ping",
+		"ing-assistants-yaka-respos-prerentree",
+		"ing-assistants-yaka-respos-spider",
+		"ing-assistants-yaka-respos-tiger",
+		"ing-assistants-yaka-stage",
+		"ing-assistants-yaka",
+		"ing-assistants",
+		"ing-csi",
+		"ing-de",
+		"ing-gistre-chief",
+		"ing-gistre-representatives",
+		"ing-gistre-roots",
+		"ing-gistre",
+		"ing-gitm-representatives",
+		"ing-gitm",
+		"ing-ice-representatives",
+		"ing-ice-roots",
+		"ing-ice",
+		"ing-if-representatives",
+		"ing-if",
+		"ing-image-representatives",
+		"ing-image",
+		"ing-ing1-arcs-s5-prs",
+		"ing-ing1-arcs-s6-prs",
+		"ing-ing1-arcs",
+		"ing-ing1-bing",
+		"ing-ing1-lyn",
+		"ing-ing1-prs",
+		"ing-ing1-riemann",
+		"ing-ing1-rns",
+		"ing-ing1-s5-lyn-representatives",
+		"ing-ing1-s5-lyn",
+		"ing-ing1-s5-prs-a1",
+		"ing-ing1-s5-prs-a2",
+		"ing-ing1-s5-prs-a3",
+		"ing-ing1-s5-prs-a4",
+		"ing-ing1-s5-prs-a5",
+		"ing-ing1-s5-prs-auditors",
+		"ing-ing1-s5-prs-b10",
+		"ing-ing1-s5-prs-b6",
+		"ing-ing1-s5-prs-b7",
+		"ing-ing1-s5-prs-b8",
+		"ing-ing1-s5-prs-b9",
+		"ing-ing1-s5-prs-bing",
+		"ing-ing1-s5-prs-representatives",
+		"ing-ing1-s5-prs-riemann-a1",
+		"ing-ing1-s5-prs-riemann-a2",
+		"ing-ing1-s5-prs-riemann",
+		"ing-ing1-s5-prs-shannon-c1",
+		"ing-ing1-s5-prs-shannon-c2",
+		"ing-ing1-s5-prs-shannon-c3",
+		"ing-ing1-s5-prs-shannon-c4",
+		"ing-ing1-s5-prs-shannon-c5",
+		"ing-ing1-s5-prs-shannon",
+		"ing-ing1-s5-prs-std",
+		"ing-ing1-s5-prs-tanenbaum-d1",
+		"ing-ing1-s5-prs-tanenbaum-d2",
+		"ing-ing1-s5-prs-tanenbaum-d3",
+		"ing-ing1-s5-prs-tanenbaum-d4",
+		"ing-ing1-s5-prs-tanenbaum-d5",
+		"ing-ing1-s5-prs-tanenbaum",
+		"ing-ing1-s5-prs",
+		"ing-ing1-s5-representatives",
+		"ing-ing1-s5-rns-representatives",
+		"ing-ing1-s5-rns",
+		"ing-ing1-s5-std",
+		"ing-ing1-s5-stg-representatives",
+		"ing-ing1-s5-stg",
+		"ing-ing1-s5-tc-hi",
+		"ing-ing1-s5-tc-hm",
+		"ing-ing1-s5-tls-representatives",
+		"ing-ing1-s5-tls",
+		"ing-ing1-s5",
+		"ing-ing1-s6-lyn-l1",
+		"ing-ing1-s6-lyn-l2",
+		"ing-ing1-s6-lyn-l3",
+		"ing-ing1-s6-lyn-representatives",
+		"ing-ing1-s6-lyn",
+		"ing-ing1-s6-prs-a1",
+		"ing-ing1-s6-prs-a2",
+		"ing-ing1-s6-prs-a3",
+		"ing-ing1-s6-prs-a4",
+		"ing-ing1-s6-prs-a5",
+		"ing-ing1-s6-prs-auditors",
+		"ing-ing1-s6-prs-b10",
+		"ing-ing1-s6-prs-b11",
+		"ing-ing1-s6-prs-b6",
+		"ing-ing1-s6-prs-b7",
+		"ing-ing1-s6-prs-b8",
+		"ing-ing1-s6-prs-b9",
+		"ing-ing1-s6-prs-bing",
+		"ing-ing1-s6-prs-representatives",
+		"ing-ing1-s6-prs-riemann-a1",
+		"ing-ing1-s6-prs-riemann-a2",
+		"ing-ing1-s6-prs-riemann",
+		"ing-ing1-s6-prs-shannon-c1",
+		"ing-ing1-s6-prs-shannon-c2",
+		"ing-ing1-s6-prs-shannon-c3",
+		"ing-ing1-s6-prs-shannon-c4",
+		"ing-ing1-s6-prs-shannon-c5",
+		"ing-ing1-s6-prs-shannon",
+		"ing-ing1-s6-prs-std",
+		"ing-ing1-s6-prs-tanenbaum-d1",
+		"ing-ing1-s6-prs-tanenbaum-d2",
+		"ing-ing1-s6-prs-tanenbaum-d3",
+		"ing-ing1-s6-prs-tanenbaum-d4",
+		"ing-ing1-s6-prs-tanenbaum-d5",
+		"ing-ing1-s6-prs-tanenbaum",
+		"ing-ing1-s6-prs",
+		"ing-ing1-s6-representatives",
+		"ing-ing1-s6-rns-representatives",
+		"ing-ing1-s6-rns",
+		"ing-ing1-s6-stg-representatives",
+		"ing-ing1-s6-stg-s1",
+		"ing-ing1-s6-stg-s2",
+		"ing-ing1-s6-stg",
+		"ing-ing1-s6-tls-representatives",
+		"ing-ing1-s6-tls-t1",
+		"ing-ing1-s6-tls-t2",
+		"ing-ing1-s6-tls",
+		"ing-ing1-s6",
+		"ing-ing1-shannon",
+		"ing-ing1-stg",
+		"ing-ing1-tanenbaum",
+		"ing-ing1-tls",
+		"ing-ing1",
+		"ing-ing2-lyn",
+		"ing-ing2-prs",
+		"ing-ing2-s7-prs",
+		"ing-ing2-s7-representatives",
+		"ing-ing2-s7-stg",
+		"ing-ing2-s7",
+		"ing-ing2-s8-lyn-if-representatives",
+		"ing-ing2-s8-lyn-if",
+		"ing-ing2-s8-lyn-rdi",
+		"ing-ing2-s8-lyn-representatives",
+		"ing-ing2-s8-lyn-sciag-representatives",
+		"ing-ing2-s8-lyn-sciag",
+		"ing-ing2-s8-lyn",
+		"ing-ing2-s8-prs-gistre-representatives",
+		"ing-ing2-s8-prs-gistre",
+		"ing-ing2-s8-prs-gitm-representatives",
+		"ing-ing2-s8-prs-gitm",
+		"ing-ing2-s8-prs-ice-representatives",
+		"ing-ing2-s8-prs-ice",
+		"ing-ing2-s8-prs-image-representatives",
+		"ing-ing2-s8-prs-image",
+		"ing-ing2-s8-prs-mti-representatives",
+		"ing-ing2-s8-prs-mti",
+		"ing-ing2-s8-prs-quantum-representatives",
+		"ing-ing2-s8-prs-quantum",
+		"ing-ing2-s8-prs-rdi",
+		"ing-ing2-s8-prs-representatives",
+		"ing-ing2-s8-prs-sante-representatives",
+		"ing-ing2-s8-prs-sante",
+		"ing-ing2-s8-prs-scia-representatives",
+		"ing-ing2-s8-prs-scia",
+		"ing-ing2-s8-prs-sigl-representatives",
+		"ing-ing2-s8-prs-sigl",
+		"ing-ing2-s8-prs-srs-representatives",
+		"ing-ing2-s8-prs-srs",
+		"ing-ing2-s8-prs-startup-representatives",
+		"ing-ing2-s8-prs-startup",
+		"ing-ing2-s8-prs-tcom-representatives",
+		"ing-ing2-s8-prs-tcom",
+		"ing-ing2-s8-prs",
+		"ing-ing2-s8-representatives",
+		"ing-ing2-s8-tls-representatives",
+		"ing-ing2-s8-tls-ssie-representatives",
+		"ing-ing2-s8-tls-ssie",
+		"ing-ing2-s8-tls",
+		"ing-ing2-s8",
+		"ing-ing2-stg",
+		"ing-ing2-tls",
+		"ing-ing2",
+		"ing-ing3-lyn",
+		"ing-ing3-prs",
+		"ing-ing3-s10-prs",
+		"ing-ing3-s10",
+		"ing-ing3-s9-lyn-if-representatives",
+		"ing-ing3-s9-lyn-if",
+		"ing-ing3-s9-lyn-rdi",
+		"ing-ing3-s9-lyn-representatives",
+		"ing-ing3-s9-lyn-sciag-representatives",
+		"ing-ing3-s9-lyn-sciag",
+		"ing-ing3-s9-lyn",
+		"ing-ing3-s9-prs-gistre-representatives",
+		"ing-ing3-s9-prs-gistre",
+		"ing-ing3-s9-prs-gitm-representatives",
+		"ing-ing3-s9-prs-gitm",
+		"ing-ing3-s9-prs-ice-representatives",
+		"ing-ing3-s9-prs-ice",
+		"ing-ing3-s9-prs-image-representatives",
+		"ing-ing3-s9-prs-image",
+		"ing-ing3-s9-prs-mti-representatives",
+		"ing-ing3-s9-prs-mti",
+		"ing-ing3-s9-prs-quantum-representatives",
+		"ing-ing3-s9-prs-quantum",
+		"ing-ing3-s9-prs-rdi",
+		"ing-ing3-s9-prs-representatives",
+		"ing-ing3-s9-prs-sante-representatives",
+		"ing-ing3-s9-prs-sante",
+		"ing-ing3-s9-prs-scia-representatives",
+		"ing-ing3-s9-prs-scia",
+		"ing-ing3-s9-prs-sigl-representatives",
+		"ing-ing3-s9-prs-sigl",
+		"ing-ing3-s9-prs-srs-representatives",
+		"ing-ing3-s9-prs-srs",
+		"ing-ing3-s9-prs-startup-representatives",
+		"ing-ing3-s9-prs-startup",
+		"ing-ing3-s9-prs-tcom-representatives",
+		"ing-ing3-s9-prs-tcom",
+		"ing-ing3-s9-prs",
+		"ing-ing3-s9-representatives",
+		"ing-ing3-s9-tls-representatives",
+		"ing-ing3-s9-tls-ssie-representatives",
+		"ing-ing3-s9-tls-ssie",
+		"ing-ing3-s9-tls",
+		"ing-ing3-s9",
+		"ing-ing3-tls",
+		"ing-ing3",
+		"ing-mti-representatives",
+		"ing-mti-roots",
+		"ing-mti",
+		"ing-quantum-representatives",
+		"ing-quantum",
+		"ing-rdi",
+		"ing-sante-representatives",
+		"ing-sante",
+		"ing-scia-representatives",
+		"ing-scia",
+		"ing-sciag-representatives",
+		"ing-sciag",
+		"ing-scolarite-coaching",
+		"ing-scolarite",
+		"ing-sigl-representatives",
+		"ing-sigl-siops",
+		"ing-sigl",
+		"ing-srs-assistants",
+		"ing-srs-fic-directors",
+		"ing-srs-fic-roots",
+		"ing-srs-representatives",
+		"ing-srs-roots",
+		"ing-srs",
+		"ing-ssie-representatives",
+		"ing-ssie",
+		"ing-startup-representatives",
+		"ing-startup",
+		"ing-tcom-assistants",
+		"ing-tcom-representatives",
+		"ing-tcom-respos-labo",
+		"ing-tcom-roots",
+		"ing-tcom",
+		"ing",
+		"inter-bsc",
+		"inter-exch-f21",
+		"inter-exch-fall",
+		"inter-exch-s21",
+		"inter-exch-s22",
+		"inter-exch-spring",
+		"inter-f18",
+		"inter-f19",
+		"inter-f20",
+		"inter-f21",
+		"inter-fall",
+		"inter-mcs-cs",
+		"inter-mcs-dsa",
+		"inter-mcs-ism",
+		"inter-mcs-se",
+		"inter-mcs",
+		"inter-me",
+		"inter-msc-aims",
+		"inter-msc-ais",
+		"inter-s21",
+		"inter-s22",
+		"inter-spring",
+		"inter-summer",
+		"inter-summer22",
+		"inter",
+		"labo-3ie",
+		"labo-labsi-devs",
+		"labo-labsi-employees",
+		"labo-labsi-interns",
+		"labo-labsi-manager",
+		"labo-labsi-roots",
+		"labo-labsi-students",
+		"labo-labsi",
+		"labo-lrde-automates",
+		"labo-lrde-image-openstack",
+		"labo-lrde-image",
+		"labo-lrde-roots",
+		"labo-lrde",
+		"labo-lre-roots",
+		"labo-lre",
+		"labo-lse-eslr",
+		"labo-lse-roots",
+		"labo-lse-secu",
+		"labo-lse-sys",
+		"labo-lse",
+		"labo-metalab-roots",
+		"labo-seal-permanents",
+		"labo-seal-stagiaires",
+		"labo-seal",
+		"lyn",
+		"ofa-scolarite",
+		"pi-fle",
+		"pi",
+		"prepa-admissions",
+		"prepa-assistants-acdc-lyn",
+		"prepa-assistants-acdc-prs",
+		"prepa-assistants-acdc-rns",
+		"prepa-assistants-acdc-stg",
+		"prepa-assistants-acdc-tls",
+		"prepa-assistants-acdc",
+		"prepa-assistants-asm-lyn",
+		"prepa-assistants-asm-prs",
+		"prepa-assistants-asm-rns",
+		"prepa-assistants-asm-stg",
+		"prepa-assistants-asm-tls",
+		"prepa-assistants-asm",
+		"prepa-spe-api-s3-prs",
+		"prepa-spe-api-s4-prs",
+		"prepa-spe-lyn",
+		"prepa-spe-prs",
+		"prepa-spe-rns",
+		"prepa-spe-s3-lyn-l1",
+		"prepa-spe-s3-lyn-l2",
+		"prepa-spe-s3-lyn-l3",
+		"prepa-spe-s3-lyn",
+		"prepa-spe-s3-prs-a1",
+		"prepa-spe-s3-prs-a2",
+		"prepa-spe-s3-prs-b1",
+		"prepa-spe-s3-prs-b2",
+		"prepa-spe-s3-prs-c1",
+		"prepa-spe-s3-prs-c2",
+		"prepa-spe-s3-prs-d1",
+		"prepa-spe-s3-prs-d2",
+		"prepa-spe-s3-prs-e1",
+		"prepa-spe-s3-prs-pa1",
+		"prepa-spe-s3-prs-pa2",
+		"prepa-spe-s3-prs",
+		"prepa-spe-s3-rns-r1",
+		"prepa-spe-s3-rns-r2",
+		"prepa-spe-s3-rns",
+		"prepa-spe-s3-stg-spe1",
+		"prepa-spe-s3-stg-spe2",
+		"prepa-spe-s3-stg",
+		"prepa-spe-s3-tls-t1",
+		"prepa-spe-s3-tls-t2",
+		"prepa-spe-s3-tls",
+		"prepa-spe-s3",
+		"prepa-spe-s3s-prs-a1",
+		"prepa-spe-s3s-prs-a2",
+		"prepa-spe-s3s-prs",
+		"prepa-spe-s3s",
+		"prepa-spe-s4-inter",
+		"prepa-spe-s4-lyn-a",
+		"prepa-spe-s4-lyn-b",
+		"prepa-spe-s4-lyn-l1",
+		"prepa-spe-s4-lyn-l2",
+		"prepa-spe-s4-lyn-l3",
+		"prepa-spe-s4-lyn",
+		"prepa-spe-s4-prs-a1",
+		"prepa-spe-s4-prs-a2",
+		"prepa-spe-s4-prs-b1",
+		"prepa-spe-s4-prs-b2",
+		"prepa-spe-s4-prs-c1",
+		"prepa-spe-s4-prs-c2",
+		"prepa-spe-s4-prs",
+		"prepa-spe-s4-rns-r1",
+		"prepa-spe-s4-rns-r2",
+		"prepa-spe-s4-rns",
+		"prepa-spe-s4-stg-spe1",
+		"prepa-spe-s4-stg-spe2",
+		"prepa-spe-s4-stg",
+		"prepa-spe-s4-tls-t1",
+		"prepa-spe-s4-tls-t2",
+		"prepa-spe-s4-tls",
+		"prepa-spe-s4",
+		"prepa-spe-stg",
+		"prepa-spe-tls",
+		"prepa-spe",
+		"prepa-sup-lyn",
+		"prepa-sup-prs",
+		"prepa-sup-rns",
+		"prepa-sup-s1-lyn-l1",
+		"prepa-sup-s1-lyn-l2",
+		"prepa-sup-s1-lyn-l3",
+		"prepa-sup-s1-lyn-l4",
+		"prepa-sup-s1-lyn",
+		"prepa-sup-s1-prs-a1",
+		"prepa-sup-s1-prs-a2",
+		"prepa-sup-s1-prs-a3",
+		"prepa-sup-s1-prs-b1",
+		"prepa-sup-s1-prs-b2",
+		"prepa-sup-s1-prs-c1",
+		"prepa-sup-s1-prs-c2",
+		"prepa-sup-s1-prs-d1",
+		"prepa-sup-s1-prs-d2",
+		"prepa-sup-s1-prs-e1",
+		"prepa-sup-s1-prs-e2",
+		"prepa-sup-s1-prs-f1",
+		"prepa-sup-s1-prs-pa1",
+		"prepa-sup-s1-prs-pa2",
+		"prepa-sup-s1-prs",
+		"prepa-sup-s1-rns-r1",
+		"prepa-sup-s1-rns-r2",
+		"prepa-sup-s1-rns",
+		"prepa-sup-s1-stg-st1",
+		"prepa-sup-s1-stg-st2",
+		"prepa-sup-s1-stg",
+		"prepa-sup-s1-tls-t1",
+		"prepa-sup-s1-tls-t2",
+		"prepa-sup-s1-tls-t3",
+		"prepa-sup-s1-tls",
+		"prepa-sup-s1",
+		"prepa-sup-s1s-prs",
+		"prepa-sup-s1s",
+		"prepa-sup-s2-lyn-l1",
+		"prepa-sup-s2-lyn-l2",
+		"prepa-sup-s2-lyn-l3",
+		"prepa-sup-s2-lyn-l4",
+		"prepa-sup-s2-lyn",
+		"prepa-sup-s2-prs-a1",
+		"prepa-sup-s2-prs-a2",
+		"prepa-sup-s2-prs-a3",
+		"prepa-sup-s2-prs-b1",
+		"prepa-sup-s2-prs-b2",
+		"prepa-sup-s2-prs-c1",
+		"prepa-sup-s2-prs-c2",
+		"prepa-sup-s2-prs-d1",
+		"prepa-sup-s2-prs-d2",
+		"prepa-sup-s2-prs-e1",
+		"prepa-sup-s2-prs-e2",
+		"prepa-sup-s2-prs-f1",
+		"prepa-sup-s2-prs",
+		"prepa-sup-s2-rns-r1",
+		"prepa-sup-s2-rns-r2",
+		"prepa-sup-s2-rns-r3",
+		"prepa-sup-s2-rns",
+		"prepa-sup-s2-stg-st1",
+		"prepa-sup-s2-stg-st2",
+		"prepa-sup-s2-stg",
+		"prepa-sup-s2-tls-t1",
+		"prepa-sup-s2-tls-t2",
+		"prepa-sup-s2-tls-t3",
+		"prepa-sup-s2-tls",
+		"prepa-sup-s2",
+		"prepa-sup-s2s-prs-a1",
+		"prepa-sup-s2s-prs-a2",
+		"prepa-sup-s2s-prs",
+		"prepa-sup-s2s",
+		"prepa-sup-stg",
+		"prepa-sup-tls",
+		"prepa-sup",
+		"prepa",
+		"prs",
+		"rns",
+		"service-accounts",
+		"stg",
+		"students",
+		"teachers-permanent",
+		"teachers",
+		"tls",
+		"users",
+		"wheel"
+	]
+}
diff --git a/src/bot.ts b/src/bot.ts
index fd47139..993b2c1 100644
--- a/src/bot.ts
+++ b/src/bot.ts
@@ -121,21 +121,25 @@ export class EpitlsBot {
 
 function message_command_response_sending_email(email: string) {
 	const embed = new EmbedBuilder()
-		.setTitle("`🟡`| Verification")
-		.setDescription(`Sending a verification link to your email \`${email}\`.`);
+		.setTitle("`🟡`| Vérification")
+		.setDescription(`
+Un lien de vérification a été envoyé par e-mail à \`${email}\`.
+Le lien expirera dans 5 minutes.
+**Il pourraît être arrivé dans \`Courrier indésirable\`.**
+`.trim());
 	return { embeds: [embed] };
 }
 
 function message_command_response_error(msg: string) {
 	const embed = new EmbedBuilder()
-		.setTitle("`❌`| Verification")
-		.setDescription(`An error occured\n\`${msg}\``);
+		.setTitle("`❌`| Vérification")
+		.setDescription(`Échec de la vérification :\n\`${msg}\``);
 	return { embeds: [embed] };
 }
 
 function message_command_response_success() {
 	const embed = new EmbedBuilder()
-		.setTitle("`✅`| Verification")
-		.setDescription("Your email was associated with this account.");
+		.setTitle("`✅`| Vérification")
+		.setDescription("Votre e-mail CRI a bien été associé à ce compte Discord.");
 	return { embeds: [embed] };
 }
diff --git a/src/cri.ts b/src/cri.ts
index a980044..5c0d8c9 100644
--- a/src/cri.ts
+++ b/src/cri.ts
@@ -1,9 +1,14 @@
 import { z } from "https://deno.land/x/zod@v3.22.4/mod.ts";
+import { log_from } from "./utils.ts";
+const log = (...args: unknown[]) => log_from(import.meta.url, ...args);
 
 /**
  * Wraps the CRI API.
  */
 export class CriApi {
+	/**
+	 * note : a CRI token is actually
+	 */
 	private token;
 
 	public constructor(token: string) {
@@ -14,13 +19,8 @@ export class CriApi {
 	 * Fetches an array of the groups an user has been part of.
 	 */
 	public async groups_of(login: string) {
-		const response = await fetch(`https://cri.epita.fr/api/v2/users/${login}/`, {
-			headers: {
-				accept: "application/json",
-				authorization: "Basic " + this.token,
-			},
-		});
-		const body = await response.json();
+		log(`Fetching groups of '${login}'.`);
+		const response = await fetch_json_auth(`https://cri.epita.fr/api/v2/users/${login}/`, this.token);
 		const group = z.object({ slug: z.string() });
 		const parser = z.object({
 			primary_group: group,
@@ -30,7 +30,7 @@ export class CriApi {
 			})),
 			current_groups: z.array(group),
 		});
-		const parsed = parser.parse(body);
+		const parsed = parser.parse(response);
 		const result = new Set<string>();
 		result.add(parsed.primary_group.slug);
 		for (const group of parsed.current_groups) result.add(group.slug);
@@ -42,12 +42,43 @@ export class CriApi {
 	 * Tests wether a given login exists within the CRI registry.
 	 */
 	public async user_exists(login: string) {
+		log(`Testing existence of user '${login}'.`);
 		const response = await fetch(`https://cri.epita.fr/api/v2/users/${login}/`, {
 			headers: {
 				accept: "application/json",
 				authorization: "Basic " + this.token,
 			},
 		});
-		return response.status === 200;
+		const found = response.status === 200;
+		return found;
+	}
+
+	public async get_all_groups() {
+		const result = [] as string[];
+		const response_parser = z.object({
+			next: z.string().or(z.null()),
+			results: z.array(z.object({
+				slug: z.string(),
+			})),
+		});
+		let next_url = `https://cri.epita.fr/api/v2/groups/`;
+		while (true) {
+			const response = await fetch_json_auth(next_url, this.token);
+			const parsed = response_parser.parse(response);
+			result.push(...parsed.results.map((g) => g.slug));
+			if (parsed.next === null) break;
+			next_url = parsed.next;
+		}
+		return result;
 	}
 }
+
+async function fetch_json_auth(url: string, token: string) {
+	const response = await fetch(url, {
+		headers: {
+			accept: "application/json",
+			authorization: "Basic " + token,
+		},
+	});
+	return await response.json() as unknown;
+}