diff -pu dwm.git/config.def.h dwm.functionalgapspertag/config.def.h
--- dwm.git/config.def.h	2021-02-27 21:17:53.862314811 -0600
+++ dwm.functionalgapspertag/config.def.h	2021-03-01 15:40:07.312696974 -0600
@@ -2,6 +2,8 @@
 
 /* appearance */
 static const unsigned int borderpx  = 1;        /* border pixel of windows */
+static const int startwithgaps[]    = { 0 };	/* 1 means gaps are used by default, this can be customized for each tag */
+static const unsigned int gappx[]   = { 10 };   /* default gap between windows in pixels, this can be customized for each tag */
 static const unsigned int snap      = 32;       /* snap pixel */
 static const int showbar            = 1;        /* 0 means no bar */
 static const int topbar             = 1;        /* 0 means bottom bar */
@@ -84,6 +86,10 @@ static Key keys[] = {
 	{ MODKEY,                       XK_period, focusmon,       {.i = +1 } },
 	{ MODKEY|ShiftMask,             XK_comma,  tagmon,         {.i = -1 } },
 	{ MODKEY|ShiftMask,             XK_period, tagmon,         {.i = +1 } },
+	{ MODKEY,                       XK_minus,  setgaps,        {.i = -5 } },
+	{ MODKEY,                       XK_equal,  setgaps,        {.i = +5 } },
+	{ MODKEY|ShiftMask,             XK_minus,  setgaps,        {.i = GAP_RESET } },
+	{ MODKEY|ShiftMask,             XK_equal,  setgaps,        {.i = GAP_TOGGLE} },
 	TAGKEYS(                        XK_1,                      0)
 	TAGKEYS(                        XK_2,                      1)
 	TAGKEYS(                        XK_3,                      2)
diff -pu dwm.git/dwm.c dwm.functionalgapspertag/dwm.c
--- dwm.git/dwm.c	2021-02-27 21:17:53.862314811 -0600
+++ dwm.functionalgapspertag/dwm.c	2021-03-01 17:10:10.402964866 -0600
@@ -57,6 +57,9 @@
 #define TAGMASK                 ((1 << LENGTH(tags)) - 1)
 #define TEXTW(X)                (drw_fontset_getwidth(drw, (X)) + lrpad)
 
+#define GAP_TOGGLE 100
+#define GAP_RESET  0
+
 /* enums */
 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
 enum { SchemeNorm, SchemeSel }; /* color schemes */
@@ -111,6 +114,8 @@ typedef struct {
 	void (*arrange)(Monitor *);
 } Layout;
 
+typedef struct Pertag Pertag;
+
 struct Monitor {
 	char ltsymbol[16];
 	float mfact;
@@ -130,6 +135,7 @@ struct Monitor {
 	Monitor *next;
 	Window barwin;
 	const Layout *lt[2];
+	Pertag *pertag;
 };
 
 typedef struct {
@@ -200,6 +206,7 @@ static void sendmon(Client *c, Monitor *
 static void setclientstate(Client *c, long state);
 static void setfocus(Client *c);
 static void setfullscreen(Client *c, int fullscreen);
+static void setgaps(const Arg *arg);
 static void setlayout(const Arg *arg);
 static void setmfact(const Arg *arg);
 static void setup(void);
@@ -272,6 +279,18 @@ static Window root, wmcheckwin;
 /* configuration, allows nested code to access above variables */
 #include "config.h"
 
+struct Pertag {
+	unsigned int curtag, prevtag; /* current and previous tag */
+	int nmasters[LENGTH(tags) + 1]; /* number of windows in master area */
+	float mfacts[LENGTH(tags) + 1]; /* mfacts per tag */
+	unsigned int sellts[LENGTH(tags) + 1]; /* selected layouts */
+	const Layout *ltidxs[LENGTH(tags) + 1][2]; /* matrix of tags and layouts indexes  */
+	int showbars[LENGTH(tags) + 1]; /* display bar for the current tag */
+
+	int drawwithgaps[LENGTH(tags) + 1]; /* gaps toggle for each tag */
+	int gappx[LENGTH(tags) + 1]; /* gaps for each tag */
+};
+
 /* compile-time check if all tags fit into an unsigned int bit array. */
 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
 
@@ -632,6 +651,7 @@ Monitor *
 createmon(void)
 {
 	Monitor *m;
+	unsigned int i;
 
 	m = ecalloc(1, sizeof(Monitor));
 	m->tagset[0] = m->tagset[1] = 1;
@@ -642,6 +662,26 @@ createmon(void)
 	m->lt[0] = &layouts[0];
 	m->lt[1] = &layouts[1 % LENGTH(layouts)];
 	strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
+	m->pertag = ecalloc(1, sizeof(Pertag));
+	m->pertag->curtag = m->pertag->prevtag = 1;
+
+	for (i = 0; i <= LENGTH(tags); i++) {
+		m->pertag->nmasters[i] = m->nmaster;
+		m->pertag->mfacts[i] = m->mfact;
+
+		m->pertag->ltidxs[i][0] = m->lt[0];
+		m->pertag->ltidxs[i][1] = m->lt[1];
+		m->pertag->sellts[i] = m->sellt;
+
+		m->pertag->showbars[i] = m->showbar;
+		if (i > 0) {
+			m->pertag->drawwithgaps[i] = startwithgaps[(i - 1) % LENGTH(gappx)];
+			m->pertag->gappx[i] = gappx[(i - 1) % LENGTH(gappx)];
+		}
+	}
+	m->pertag->drawwithgaps[0] = startwithgaps[0]; 
+	m->pertag->gappx[0] = gappx[0];
+
 	return m;
 }
 
@@ -797,6 +837,12 @@ focus(Client *c)
 		attachstack(c);
 		grabbuttons(c, 1);
 		XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
+                if (!selmon->pertag->drawwithgaps[selmon->pertag->curtag] && !c->isfloating) {
+			XWindowChanges wc;
+                        wc.sibling = selmon->barwin;
+                        wc.stack_mode = Below;
+                        XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
+                }
 		setfocus(c);
 	} else {
 		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
@@ -967,7 +1013,7 @@ grabkeys(void)
 void
 incnmaster(const Arg *arg)
 {
-	selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
+	selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag] = MAX(selmon->nmaster + arg->i, 0);
 	arrange(selmon);
 }
 
@@ -1113,7 +1159,10 @@ monocle(Monitor *m)
 	if (n > 0) /* override layout symbol */
 		snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
 	for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
-		resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0);
+		if (selmon->pertag->drawwithgaps[selmon->pertag->curtag])
+			resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0);
+		else
+			resize(c, m->wx - c->bw, m->wy, m->ww, m->wh, False);
 }
 
 void
@@ -1283,6 +1332,15 @@ resizeclient(Client *c, int x, int y, in
 	c->oldw = c->w; c->w = wc.width = w;
 	c->oldh = c->h; c->h = wc.height = h;
 	wc.border_width = c->bw;
+	if (!selmon->pertag->drawwithgaps[selmon->pertag->curtag] && /* this is the noborderfloatingfix patch, slightly modified so that it will work if, and only if, gaps are disabled. */
+	    (((nexttiled(c->mon->clients) == c && !nexttiled(c->next)) /* these two first lines are the only ones changed. if you are manually patching and have noborder installed already, just change these lines; or conversely, just remove this section if the noborder patch is not desired;) */
+	    || &monocle == c->mon->lt[c->mon->sellt]->arrange))
+	    && !c->isfullscreen && !c->isfloating
+	    && NULL != c->mon->lt[c->mon->sellt]->arrange) {
+	        c->w = wc.width += c->bw * 2;
+	        c->h = wc.height += c->bw * 2;
+	        wc.border_width = 0;
+	}
 	XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
 	configure(c);
 	XSync(dpy, False);
@@ -1499,12 +1557,35 @@ setfullscreen(Client *c, int fullscreen)
 }
 
 void
+setgaps(const Arg *arg)
+{
+	switch(arg->i)
+	{
+		case GAP_TOGGLE:
+			selmon->pertag->drawwithgaps[selmon->pertag->curtag] = !selmon->pertag->drawwithgaps[selmon->pertag->curtag];
+			break;
+		case GAP_RESET:
+			if (selmon->pertag->curtag > 0)
+				selmon->pertag->gappx[selmon->pertag->curtag] = gappx[selmon->pertag->curtag - 1 % LENGTH(gappx)];
+			else
+				selmon->pertag->gappx[0] = gappx[0];
+			break;
+		default:
+			if (selmon->pertag->gappx[selmon->pertag->curtag] + arg->i < 0)
+				selmon->pertag->gappx[selmon->pertag->curtag] = 0;
+			else
+				selmon->pertag->gappx[selmon->pertag->curtag] += arg->i;
+	}
+	arrange(selmon);
+}
+
+void
 setlayout(const Arg *arg)
 {
 	if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
-		selmon->sellt ^= 1;
+		selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag] ^= 1;
 	if (arg && arg->v)
-		selmon->lt[selmon->sellt] = (Layout *)arg->v;
+		selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt] = (Layout *)arg->v;
 	strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
 	if (selmon->sel)
 		arrange(selmon);
@@ -1523,7 +1604,7 @@ setmfact(const Arg *arg)
 	f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
 	if (f < 0.05 || f > 0.95)
 		return;
-	selmon->mfact = f;
+	selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag] = f;
 	arrange(selmon);
 }
 
@@ -1680,29 +1761,48 @@ tile(Monitor *m)
 	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
 	if (n == 0)
 		return;
-
-	if (n > m->nmaster)
-		mw = m->nmaster ? m->ww * m->mfact : 0;
-	else
-		mw = m->ww;
-	for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
-		if (i < m->nmaster) {
-			h = (m->wh - my) / (MIN(n, m->nmaster) - i);
-			resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0);
-			if (my + HEIGHT(c) < m->wh)
-				my += HEIGHT(c);
-		} else {
-			h = (m->wh - ty) / (n - i);
-			resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
-			if (ty + HEIGHT(c) < m->wh)
-				ty += HEIGHT(c);
-		}
+	if (m->pertag->drawwithgaps[m->pertag->curtag]) { /* draw with fullgaps logic */
+	        if (n > m->nmaster)
+	                mw = m->nmaster ? m->ww * m->mfact : 0;
+	        else
+	                mw = m->ww - m->pertag->gappx[m->pertag->curtag];
+	        for (i = 0, my = ty = m->pertag->gappx[m->pertag->curtag], c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
+	                if (i < m->nmaster) {
+	                        h = (m->wh - my) / (MIN(n, m->nmaster) - i) - m->pertag->gappx[m->pertag->curtag];
+	                        resize(c, m->wx + m->pertag->gappx[m->pertag->curtag], m->wy + my, mw - (2*c->bw) - m->pertag->gappx[m->pertag->curtag], h - (2*c->bw), 0);
+	                        if (my + HEIGHT(c) + m->pertag->gappx[m->pertag->curtag] < m->wh)
+	                                my += HEIGHT(c) + m->pertag->gappx[m->pertag->curtag];
+	                } else {
+	                        h = (m->wh - ty) / (n - i) - m->pertag->gappx[m->pertag->curtag];
+	                        resize(c, m->wx + mw + m->pertag->gappx[m->pertag->curtag], m->wy + ty, m->ww - mw - (2*c->bw) - 2*m->pertag->gappx[m->pertag->curtag], h - (2*c->bw), 0);
+	                        if (ty + HEIGHT(c) + m->pertag->gappx[m->pertag->curtag] < m->wh)
+	                                ty += HEIGHT(c) + m->pertag->gappx[m->pertag->curtag];
+	                }
+	} else { /* draw with singularborders logic */
+	        if (n > m->nmaster)
+	                mw = m->nmaster ? m->ww * m->mfact : 0;
+	        else
+	                mw = m->ww;
+	        for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
+	                if (i < m->nmaster) {
+	                        h = (m->wh - my) / (MIN(n, m->nmaster) - i);
+	                        if (n == 1)
+	                                resize(c, m->wx - c->bw, m->wy, m->ww, m->wh, False);
+	                        else
+	                                resize(c, m->wx - c->bw, m->wy + my, mw - c->bw, h - c->bw, False);
+	                        my += HEIGHT(c) - c->bw;
+	                } else {
+	                        h = (m->wh - ty) / (n - i);
+	                        resize(c, m->wx + mw - c->bw, m->wy + ty, m->ww - mw, h - c->bw, False);
+	                        ty += HEIGHT(c) - c->bw;
+	                }
+	}
 }
 
 void
 togglebar(const Arg *arg)
 {
-	selmon->showbar = !selmon->showbar;
+	selmon->showbar = selmon->pertag->showbars[selmon->pertag->curtag] = !selmon->showbar;
 	updatebarpos(selmon);
 	XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
 	arrange(selmon);
@@ -1741,9 +1841,33 @@ void
 toggleview(const Arg *arg)
 {
 	unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
+	int i;
 
 	if (newtagset) {
 		selmon->tagset[selmon->seltags] = newtagset;
+
+		if (newtagset == ~0) {
+			selmon->pertag->prevtag = selmon->pertag->curtag;
+			selmon->pertag->curtag = 0;
+		}
+
+		/* test if the user did not select the same tag */
+		if (!(newtagset & 1 << (selmon->pertag->curtag - 1))) {
+			selmon->pertag->prevtag = selmon->pertag->curtag;
+			for (i = 0; !(newtagset & 1 << i); i++) ;
+			selmon->pertag->curtag = i + 1;
+		}
+
+		/* apply settings for this view */
+		selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
+		selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag];
+		selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
+		selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
+		selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1];
+
+		if (selmon->showbar != selmon->pertag->showbars[selmon->pertag->curtag])
+			togglebar(NULL);
+
 		focus(NULL);
 		arrange(selmon);
 	}
@@ -2038,11 +2162,37 @@ updatewmhints(Client *c)
 void
 view(const Arg *arg)
 {
+	int i;
+	unsigned int tmptag;
+
 	if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
 		return;
 	selmon->seltags ^= 1; /* toggle sel tagset */
-	if (arg->ui & TAGMASK)
+	if (arg->ui & TAGMASK) {
 		selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
+		selmon->pertag->prevtag = selmon->pertag->curtag;
+
+		if (arg->ui == ~0)
+			selmon->pertag->curtag = 0;
+		else {
+			for (i = 0; !(arg->ui & 1 << i); i++) ;
+			selmon->pertag->curtag = i + 1;
+		}
+	} else {
+		tmptag = selmon->pertag->prevtag;
+		selmon->pertag->prevtag = selmon->pertag->curtag;
+		selmon->pertag->curtag = tmptag;
+	}
+
+	selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
+	selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag];
+	selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
+	selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
+	selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1];
+
+	if (selmon->showbar != selmon->pertag->showbars[selmon->pertag->curtag])
+		togglebar(NULL);
+
 	focus(NULL);
 	arrange(selmon);
 }