diff --git a/site/Makefile b/site/Makefile
index eb0bf0e..8bca593 100644
--- a/site/Makefile
+++ b/site/Makefile
@@ -18,7 +18,7 @@ REPOLOGY_BANNER =	https://repology.org/badge/vertical-allrepos/gmid.svg
 REPOLOGY_URL =		https://repology.org/project/gmid/versions
 
 SUBST =		./subst GITHUB=https://github.com/omar-polo/gmid \
-			VERS=1.8.5 \
+			VERS=1.8.6 \
 			CURV=1.8 \
 			NEXTV=1.9 \
 			TREE=https://github.com/omar-polo/gmid/blob/master
@@ -29,7 +29,7 @@ SUBST_WWW =	${SUBST} MANEXT=html EXT=html REPOLOGY=${REPOLOGY_BANNER}
 .PHONY: all dirs manpages serve-www serve-gemini upload clean titles
 
 all: dirs manpages pages
-	cp style.css www/
+	cp style.css mandoc.css www/
 	cp vim-screenshot.png www/
 	cp vim-screenshot.png gemini/
 
@@ -38,7 +38,7 @@ dirs:
 
 manpages:
 .for m in ${MANPAGES}
-	./mdoc2html.sh $m www/${m:T}.html
+	man -Thtml -Ostyle=mandoc.css $m > www/${m:T}.html
 	man -O width=65 -Tutf8 -l $m | col -b > gemini/${m:T}.txt
 .endfor
 
diff --git a/site/changelog.gmi b/site/changelog.gmi
index af7f604..49bb691 100644
--- a/site/changelog.gmi
+++ b/site/changelog.gmi
@@ -1,8 +1,15 @@
 # change log
 
-## 2022/11/01 - 1.8.5 “Lightbulb Sun” bugfix release
+## 2022/12/02 - 1.8.6 “Lightbulb Sun” bugfix release
 
-### Bug fixes
+* add tests and compat for setresuid setresgid
+* add GEMINI_SEARCH_STRING fastcgi parameter / cgi env variable
+* manpage fix: QUERY_STRING is *not* urldecoded
+* fixed use-after-free in the fastcgi code
+* when switching user also set the groups
+* always cast is*() arguments to unsigned char
+
+## 2022/11/01 - 1.8.5 “Lightbulb Sun” bugfix release
 
 * removed OpenBSD' rc file because now is maintained in the ports tree
 * (hopefully) fix build on DragonflyBSD
diff --git a/site/mandoc.css b/site/mandoc.css
new file mode 100644
index 0000000..6bfce46
--- /dev/null
+++ b/site/mandoc.css
@@ -0,0 +1,368 @@
+/* $OpenBSD: mandoc.css,v 1.39 2022/07/06 14:27:55 schwarze Exp $ */
+/*
+ * Standard style sheet for mandoc(1) -Thtml and man.cgi(8).
+ *
+ * Written by Ingo Schwarze <schwarze@openbsd.org>.
+ * I place this file into the public domain.
+ * Permission to use, copy, modify, and distribute it for any purpose
+ * with or without fee is hereby granted, without any conditions.
+ */
+
+/* Global defaults. */
+
+html {		max-width: 65em;
+		--bg: #FFFFFF;
+		--fg: #000000; }
+body {		background: var(--bg);
+		color: var(--fg);
+		font-family: Helvetica,Arial,sans-serif; }
+h1, h2 {	font-size: 110%; }
+table {		margin-top: 0em;
+		margin-bottom: 0em;
+		border-collapse: collapse; }
+/* Some browsers set border-color in a browser style for tbody,
+ * but not for table, resulting in inconsistent border styling. */
+tbody {		border-color: inherit; }
+tr {		border-color: inherit; }
+td {		vertical-align: top;
+		padding-left: 0.2em;
+		padding-right: 0.2em;
+		border-color: inherit; }
+ul, ol, dl {	margin-top: 0em;
+		margin-bottom: 0em; }
+li, dt {	margin-top: 1em; }
+pre {		font-family: inherit; }
+
+.permalink {	border-bottom: thin dotted;
+		color: inherit;
+		font: inherit;
+		text-decoration: inherit; }
+* {		clear: both }
+
+/* Search form and search results. */
+
+fieldset {	border: thin solid silver;
+		border-radius: 1em;
+		text-align: center; }
+input[name=expr] {
+		width: 25%; }
+
+table.results {	margin-top: 1em;
+		margin-left: 2em;
+		font-size: smaller; }
+
+/* Header and footer lines. */
+
+div[role=doc-pageheader] {
+		display: flex;
+		border-bottom: 1px dotted #808080;
+		margin-bottom: 1em;
+		font-size: smaller; }
+.head-ltitle {	flex: 1; }
+.head-vol {	flex: 0 1 auto;
+		text-align: center; }
+.head-rtitle {	flex: 1;
+		text-align: right; }
+
+div[role=doc-pagefooter] {
+		display: flex;
+		justify-content: space-between;
+		border-top: 1px dotted #808080;
+		margin-top: 1em;
+		font-size: smaller; }
+.foot-left {	flex: 1; }
+.foot-date {	flex: 0 1 auto;
+		text-align: center; }
+.foot-os {	flex: 1;
+		text-align: right; }
+
+/* Sections and paragraphs. */
+
+main {		margin-left: 3.8em; }
+.Nd { }
+section.Sh { }
+h2.Sh {		margin-top: 1.2em;
+		margin-bottom: 0.6em;
+		margin-left: -3.2em; }
+section.Ss { }
+h3.Ss {		margin-top: 1.2em;
+		margin-bottom: 0.6em;
+		margin-left: -1.2em;
+		font-size: 105%; }
+.Pp {		margin: 0.6em 0em; }
+.Sx { }
+.Xr { }
+
+/* Displays and lists. */
+
+.Bd { }
+.Bd-indent {	margin-left: 3.8em; }
+
+.Bl-bullet {	list-style-type: disc;
+		padding-left: 1em; }
+.Bl-bullet > li { }
+.Bl-dash {	list-style-type: none;
+		padding-left: 0em; }
+.Bl-dash > li:before {
+		content: "\2014  "; }
+.Bl-item {	list-style-type: none;
+		padding-left: 0em; }
+.Bl-item > li { }
+.Bl-compact > li {
+		margin-top: 0em; }
+
+.Bl-enum {	padding-left: 2em; }
+.Bl-enum > li { }
+.Bl-compact > li {
+		margin-top: 0em; }
+
+.Bl-diag { }
+.Bl-diag > dt {
+		font-style: normal;
+		font-weight: bold; }
+.Bl-diag > dd {
+		margin-left: 0em; }
+.Bl-hang { }
+.Bl-hang > dt { }
+.Bl-hang > dd {
+		margin-left: 5.5em; }
+.Bl-inset { }
+.Bl-inset > dt { }
+.Bl-inset > dd {
+		margin-left: 0em; }
+.Bl-ohang { }
+.Bl-ohang > dt { }
+.Bl-ohang > dd {
+		margin-left: 0em; }
+.Bl-tag {	margin-top: 0.6em;
+		margin-left: 5.5em; }
+.Bl-tag > dt {
+		float: left;
+		margin-top: 0em;
+		margin-left: -5.5em;
+		padding-right: 0.5em;
+		vertical-align: top; }
+.Bl-tag > dd {
+		clear: right;
+		column-count: 1;  /* Force block formatting context. */
+		width: 100%;
+		margin-top: 0em;
+		margin-left: 0em;
+		margin-bottom: 0.6em;
+		vertical-align: top; }
+.Bl-compact {	margin-top: 0em; }
+.Bl-compact > dd {
+		margin-bottom: 0em; }
+.Bl-compact > dt {
+		margin-top: 0em; }
+
+.Bl-column { }
+.Bl-column > tbody > tr { }
+.Bl-column > tbody > tr > td {
+		margin-top: 1em; }
+.Bl-compact > tbody > tr > td {
+		margin-top: 0em; }
+
+.Rs {		font-style: normal;
+		font-weight: normal; }
+.RsA { }
+.RsB {		font-style: italic;
+		font-weight: normal; }
+.RsC { }
+.RsD { }
+.RsI {		font-style: italic;
+		font-weight: normal; }
+.RsJ {		font-style: italic;
+		font-weight: normal; }
+.RsN { }
+.RsO { }
+.RsP { }
+.RsQ { }
+.RsR { }
+.RsT {		text-decoration: underline; }
+.RsU { }
+.RsV { }
+
+.eqn { }
+.tbl td {	vertical-align: middle; }
+
+.HP {		margin-left: 3.8em;
+		text-indent: -3.8em; }
+
+/* Semantic markup for command line utilities. */
+
+table.Nm { }
+code.Nm {	font-style: normal;
+		font-weight: bold;
+		font-family: inherit; }
+.Fl {		font-style: normal;
+		font-weight: bold;
+		font-family: inherit; }
+.Cm {		font-style: normal;
+		font-weight: bold;
+		font-family: inherit; }
+.Ar {		font-style: italic;
+		font-weight: normal; }
+.Op {		display: inline flow; }
+.Ic {		font-style: normal;
+		font-weight: bold;
+		font-family: inherit; }
+.Ev {		font-style: normal;
+		font-weight: normal;
+		font-family: monospace; }
+.Pa {		font-style: italic;
+		font-weight: normal; }
+
+/* Semantic markup for function libraries. */
+
+.Lb { }
+code.In {	font-style: normal;
+		font-weight: bold;
+		font-family: inherit; }
+a.In { }
+.Fd {		font-style: normal;
+		font-weight: bold;
+		font-family: inherit; }
+.Ft {		font-style: italic;
+		font-weight: normal; }
+.Fn {		font-style: normal;
+		font-weight: bold;
+		font-family: inherit; }
+.Fa {		font-style: italic;
+		font-weight: normal; }
+.Vt {		font-style: italic;
+		font-weight: normal; }
+.Va {		font-style: italic;
+		font-weight: normal; }
+.Dv {		font-style: normal;
+		font-weight: normal;
+		font-family: monospace; }
+.Er {		font-style: normal;
+		font-weight: normal;
+		font-family: monospace; }
+
+/* Various semantic markup. */
+
+.An { }
+.Lk { }
+.Mt { }
+.Cd {		font-style: normal;
+		font-weight: bold;
+		font-family: inherit; }
+.Ad {		font-style: italic;
+		font-weight: normal; }
+.Ms {		font-style: normal;
+		font-weight: bold; }
+.St { }
+.Ux { }
+
+/* Physical markup. */
+
+.Bf {		display: inline flow; }
+.No {		font-style: normal;
+		font-weight: normal; }
+.Em {		font-style: italic;
+		font-weight: normal; }
+.Sy {		font-style: normal;
+		font-weight: bold; }
+.Li {		font-style: normal;
+		font-weight: normal;
+		font-family: monospace; }
+
+/* Tooltip support. */
+
+h2.Sh, h3.Ss {	position: relative; }
+.An, .Ar, .Cd, .Cm, .Dv, .Em, .Er, .Ev, .Fa, .Fd, .Fl, .Fn, .Ft,
+.Ic, code.In, .Lb, .Lk, .Ms, .Mt, .Nd, code.Nm, .Pa, .Rs,
+.St, .Sx, .Sy, .Va, .Vt, .Xr {
+		display: inline flow;
+		position: relative; }
+
+.An::before {	content: "An"; }
+.Ar::before {	content: "Ar"; }
+.Cd::before {	content: "Cd"; }
+.Cm::before {	content: "Cm"; }
+.Dv::before {	content: "Dv"; }
+.Em::before {	content: "Em"; }
+.Er::before {	content: "Er"; }
+.Ev::before {	content: "Ev"; }
+.Fa::before {	content: "Fa"; }
+.Fd::before {	content: "Fd"; }
+.Fl::before {	content: "Fl"; }
+.Fn::before {	content: "Fn"; }
+.Ft::before {	content: "Ft"; }
+.Ic::before {	content: "Ic"; }
+code.In::before { content: "In"; }
+.Lb::before {	content: "Lb"; }
+.Lk::before {	content: "Lk"; }
+.Ms::before {	content: "Ms"; }
+.Mt::before {	content: "Mt"; }
+.Nd::before {	content: "Nd"; }
+code.Nm::before { content: "Nm"; }
+.Pa::before {	content: "Pa"; }
+.Rs::before {	content: "Rs"; }
+h2.Sh::before {	content: "Sh"; }
+h3.Ss::before {	content: "Ss"; }
+.St::before {	content: "St"; }
+.Sx::before {	content: "Sx"; }
+.Sy::before {	content: "Sy"; }
+.Va::before {	content: "Va"; }
+.Vt::before {	content: "Vt"; }
+.Xr::before {	content: "Xr"; }
+
+.An::before, .Ar::before, .Cd::before, .Cm::before,
+.Dv::before, .Em::before, .Er::before, .Ev::before,
+.Fa::before, .Fd::before, .Fl::before, .Fn::before, .Ft::before,
+.Ic::before, code.In::before, .Lb::before, .Lk::before,
+.Ms::before, .Mt::before, .Nd::before, code.Nm::before,
+.Pa::before, .Rs::before,
+h2.Sh::before, h3.Ss::before, .St::before, .Sx::before, .Sy::before,
+.Va::before, .Vt::before, .Xr::before {
+		opacity: 0;
+		transition: .15s ease opacity;
+		pointer-events: none;
+		position: absolute;
+		bottom: 100%;
+		box-shadow: 0 0 .35em var(--fg);
+		padding: .15em .25em;
+		white-space: nowrap;
+		font-family: Helvetica,Arial,sans-serif;
+		font-style: normal;
+		font-weight: bold;
+		background: var(--bg);
+		color: var(--fg); }
+.An:hover::before, .Ar:hover::before, .Cd:hover::before, .Cm:hover::before,
+.Dv:hover::before, .Em:hover::before, .Er:hover::before, .Ev:hover::before,
+.Fa:hover::before, .Fd:hover::before, .Fl:hover::before, .Fn:hover::before,
+.Ft:hover::before, .Ic:hover::before, code.In:hover::before,
+.Lb:hover::before, .Lk:hover::before, .Ms:hover::before, .Mt:hover::before,
+.Nd:hover::before, code.Nm:hover::before, .Pa:hover::before,
+.Rs:hover::before, h2.Sh:hover::before, h3.Ss:hover::before, .St:hover::before,
+.Sx:hover::before, .Sy:hover::before, .Va:hover::before, .Vt:hover::before,
+.Xr:hover::before {
+		opacity: 1;
+		pointer-events: inherit; }
+
+/* Overrides to avoid excessive margins on small devices. */
+
+@media (max-width: 37.5em) {
+main {		margin-left: 0.5em; }
+h2.Sh, h3.Ss {	margin-left: 0em; }
+.Bd-indent {	margin-left: 2em; }
+.Bl-hang > dd {
+		margin-left: 2em; }
+.Bl-tag {	margin-left: 2em; }
+.Bl-tag > dt {
+		margin-left: -2em; }
+.HP {		margin-left: 2em;
+		text-indent: -2em; }
+}
+
+/* Overrides for a dark color scheme for accessibility. */
+
+@media (prefers-color-scheme: dark) {
+html {		--bg: #1E1F21;
+		--fg: #EEEFF1; }
+:link {		color: #BAD7FF; }
+:visited {	color: #F6BAFF; }
+}